So AM and I were talking about Loki's influence over Selvig in between Thor and Avengers, the idea that Loki has likely "met" Jane and Darcy (as Selvig) in that time, and why that it seems like he might actually be a little fond of Selvig in the tunnel scene (in the film and in the deleted scene it is much more obvious).
Also, it occurred to me the "you have heart" thing he says to Hawkeye may have more to do with his respect that Hawkeye has the heart to stand up to him, not just lay down and die or run away, and so a form of fondness/respect for Hawkeye by transforming him instead of killing him. If it were simply to do with the scepter functioning through the heart (which it would seem it does) then any and all could be transformed, but he transforms Hawkeye specifically because he admires his "heart" and that may be the basis for his fondness for Selvig as well.
And so that leads me into something else that we were discussing in PM, which is whether or not, anything that Jane might have to say to Loki, possibly in an effort to help Thor win his brother back, might effect Loki in a meaningful way (if the Lawden spoilers are 100% correct they may be hanging out together and certainly would interact). if she were to show him that she has "heart" he may just respect that. He may also be a bit more vulnerable and open to that than he was in Avengers due to Frigga's death. He may be more open to listening to his brother or whoever tried to reach out to him, lowly Midgardian woman or not. There are sure to be few, besides Frigga, who are likely to do that reaching out, and it sure as hell would be brave of her to do that.
Alternately he may also choose to use her feelings for Thor to his advantage and hurt Thor through her, if they go in that direction. This is certainly a possibility but either way her trying is a good thing for her character as it shows bravery, compassion, and "heart" and may even make her less annoying to some.
As for whether or not she could get past what Loki has done and reach out to him for Thor's sake, I think she could. She doesn't come off to me as a blindly vengeful person, and if it's clear to her that Thor is suffering, for his brother's issues, then I could see her trying to do what she can to help rectify that.
Also we don't know what Selvig has told her about his knowledge of Loki. (and it would be interesting if Jane and Darcy recognized that something was different about Erik during that time Loki was "hanging out" with him). In any case, Erik may know a few things that others don't about Loki now, the truth the Tesseract shared with him, if you will. So he may have his own compassion for Loki on some levels. He was set up as having a great fondness as a child to the old myths of his ancestors. Children are often drawn to the "mischief maker" in such stories, and he may have grown up with a fondness for Loki. Assuming the MCU version of the myths does not have most of the much darker elements included that are in the actual myths, he may not have such a dark view of myth Loki, and see him more as the playful trickster, than the devil. (and again, if he's presented as the devil in the MCU myths, then one questions why all the Asgardians don't know that Loki is "the devil" all along when the Midgardians do). He may also have learned about Thor's affection for his brother from his night out in the bar with Thor and have compassion due to that. I'd actually love a Loki-Selvig scene where some of this was addressed, and maybe Selvig recognizes Loki's pain, and tells him he doesn't have to do this, but could be Jane does this utilizing her conversations with Selvig and Thor about it, and what she read in the books about the mythology. a sort of "you don't need to be like this, you have a choice" type conversation. Which could effect Loki, or it could be the point where he says "yes I do." I would love for either Selvig or Jane to address some of what is in the mythology in the MCU, either way.
Note for you AM: before Thor leaves with Loki he takes a moment and says something to Selvig, so I think that could wind up being a message for Jane.
And in Avengers Thor says "It is a signal to the other realms that the Earth is ready for a higher form of war", I think opening portals as we think Jane may be continuing to work on, may be included in that statement, so again, a reason Odin might send Thor down there to talk to her and get her to stop, and maybe she goes up to visit Odin when Thor can't convince her.
In the arguing scene involving the scepter, btw, pretty clearly the scepter (which is linked to the Tesseract) can exacerbate people's emotions and hostility without taking over them fully, so again I see no reason why that couldn't be
part of what Loki's issue is in Avengers, and why he has become so incredibly feral at that point, as well as the way he's twisted in his mind what actually happened to him on Asgard. And again, if it was, that would explain why he might suddenly be acting a bit more reasonable and less vengeful in Thor 2, could also explain initial craziness (per the italian footage) as he comes off of/breaks from that influence.
Also, regarding Loki influencing Selvig at the beginning, and my quote about Selvig's grumpiness and annoyed line about Hawkeye possibly being he Loki influence, it could also be the Loki influence that Selvig suddenly refers to the Tesseract as a "she", since Selvig himself didn't like Jane doing that before. That makes it seem less likely he'd do that/out of character. So if Loki is referring to it (as Selvig) as a "she" then that most certainly will mean that it is a "she".
Clearly if everyone upstairs in space has an opinion (per Tom), then there will be differing opinions. Who else do you think is likely to "reach out" to Loki? Aside from Frigga and Odin? Odin will have to punish him but I dont think that would stop him from reaching out in some ways. it was very interesting that Tom recently tweeted that his favorite Thor moment was the one where Odin said Thor already made him proud. That makes me sort of hopeful for a moment like that in Thor 2 for Loki, that he had this on his mind. (a scene he is not in at all in Thor 1). I think Thor may at least begin being "done" with him, though I think he'd come around later if Loki makes enough of an effort. I think Fandral maybe, since Zach is a big tv star, this would give him a bit more to do that Fandral had in Thor 1. And Sif, well... I'd thought her unlikely as she seemed to so dislike him in Thor 1, and I beleive have a history of seriously disliking him in the comics, but it occurred to me that would add a lot to her character if she were able to put those feelings aside in an effort to get Thor his brother back.
t: We don't know what exactly his attitude will be after Frigga dies either. He may be really hurting and much more open to talking civilly to another caring female than you might think at that point.
She was probably simply in talks with them at that time to return as Darcy (and only Darcy), but wasn't allowed to speak about it by her agent and/or marvel until that was definite. I've seen actors fall into that more than once before. They can't talk simply because they are IN talks. And then the article writer then twists it into, oh, maybe she'll be the Enchantress! 
Because that would not be a good idea for them career wise. 
The risk is too great that someone will find out, connect the dots, and there will be reprecussions. Even Lawden doesn't do that, he just spilled once, possibly by mistake, and hopefully he wasn't taken out by the Marvel snipers immediately after. 
