Odin's trailer was seen at Greenwich at one point,
Are you sure on that point? I went back and looked at waffles' photos, which was a pretty comprehensive shoot imo. She spotted Selvig's trailer and said
Along with Marvel and Malekith however all of the rest [of the trailers] were covered over or obscured by the hair+makeup or costume trailers

There were at least another 15 though so I'm guessing that if Selvig is there then Jane will be amongst them too. In here somewhere?
http://forums.superherohype.com/showpost.php?p=24658823&postcount=178
Tom Hiddleston was spotted on set at one point, but never in costume.
Hm. I am torn between wanting to see Odin in full regalia turning heads of the students at Greenwich, or dressed down Midgard Odin, he's sure to be stylin' either way.
Having enjoyed Simonson's work, I would love to see Odin, if he appears on Midgard, in the form of The Wanderer. (I couldn't find a Simonson image, but he clearly was inspired by this artwork, which appears on the Wikipedia page):
But I don't think they'll do it, because people will think he's trying to look like Gandalf
I wonder if we'll get at a some point Thor in glasses and a ponytail? LOL... Would be hilarious if Loki came down and was like "You look ridiculous."
The glasses might look silly, depending on the frames. But I'm here to tell ya that that Asgardian would *not* look ridiculous in a ponytail
another thing, those scenes of Thor and Malekith fighting by the broken columns, there is A LOT Of white dust there, which we were assuming was from the column but there is kind of A LOT for that, and depending on how they frame it could look like snow on the ground as well as rubble. Another scene shows the stairs and ground wetted behind them. Videos show smoke/fog coming from different places as they are filming (one with a machine in the middle as Thor is shot up in the air by Malekith) and a wind machine. In the Jotunheim scenes, again I'm pretty sure the snow was cgi'd in later, and there is a foggy effect going on, as the snow blows around the actors. So they maybe have 2 elements there that could be the base for putting in more snowy nasty weather later. Certainly there is some kind of storm going on, whether that is Thor or something else who knows at this point, but could be that Ymir is let loose and Thor has to take down Malekith before moving on in that particular part. Another scene where Malekith is standing alone at dusk and raises his arms to summon something, there is a white flash behind him to his left and I think he looks up at something in the sky, and of course we have lots of footage of people running away terrified and looking up behind them, with no explosions going on or other evidence of giants or aliens attacking in the sky. So again, could be Ymir given more of an elemental storm in the sky quality to him, rather than a traditional giant. This would go along with the humans having to jump on a bus and chase the eye of the storm (Ymir), maybe that's what Jane's doohickey can do something about, and stuff being blown around when it doesn't seem like Thor is doing it directly... and would be pretty different from just having it more aliens on jetskis in the sky AGAIN. Hm....
In waffles' photos, there wasn't that much white dust. We'd need a lot more to even have it qualify as a dusting of snow, let alone a big snowstorm.
As for stairs and sidewalks being wetted, first of all, they do that in movies a *lot*, even when there's no reason there should have been precipitation. I think it keeps the glare down in sunny conditions and adds interest in dark conditions. It didn't rain in New Mexico, for example, nor did it snow. But the street looks hosed down:
Second of all, it was actually drizzling in London (should I be shocked?) when they did some of the University of Greenwich filming. There's a photo in the Official photos thread of Chris Hemsworth smiling by the tents, looking a bit drenched. The hem of his cape is muddy in many of those pictures, too.
As for Jotenheim, recall that that was done on a sound stage with green screens. So they have a little more flexibility there:
(source:
http://www.reyesscenic.blogspot.com/) Even so, our fellow members have expressed dissatisfaction with the look of those scenes.
I'm sure they can do a lot with CGI these days, but I feel the evidence for a snowstorm is equivocal. The wind effects, for example, could just be to make Thor's cape billow, or to make the magic effects appear more dramatic.