I feel you! I understand what you mean, I would've loved if Raimi would have went with Gwen in 1 and have her killed in 2 by GG! He should've built up Osborn in the first movie or something, however, if I give it a second thought, I hope Webb will do that in the new franchise!
As for your thoughts on JJJ, I somehow agree too! I wish to see him finally reaching the point where he's about to blow regarding his hatred for Spider-Man, therefore,
contributing to the creation of Scorpion!
As for MJ & Peter, I also feel the same! I mean ffs the MAIN characters of the franchise were screwed! First of all, the writting of Dunst's MJ was bad imo, especially in 1&2 but she wasn't a good choice either! As for Tobey, as I said, he was great as Spider-Man, he was meh, let's say I would've been OK with it, cause in SM1 it was quite alright, but then in 2 & 3 they totally wrote him like a wuss and his acting wasn't that great either if you ask me. So I hope that this time around, they make justice for these 2 characters, both casting & writting wise.