It's possible they may start doing some of the completely CGI scenes like the Nemesis scene from ROTF before main filming, they might have already even started on them, who knows?
They're working on previs stuff right now (for those unfamiliar, the basic CGI scenes from the special features), and the script is still being written I'd suppose. I wouldn't be surprised if filming commenced as early as Spring, and by that time robot designs, the script, and basic animation would have been done. If shooting ended early summer, ILM would have nearly a year to do all of the CGI, which sounds about right considering there will probably be even more in TF3.
Yeah, next time ILM most def. needs to have more time to work on them bots. ROTF was too rushed, TF3 has a lot of expectations, but I'm optimistic it will be much better.
Definitively I go for work starting on May or June, if the mark is June-July 2011 then production starts in the summer!!
I hope they start soon..... I want a look at the new vehicles drivin around and hopefully they'll do a car chase scene with occasional transformation to dodge obstacles. But I seriously hope they film in PA again.... then I can go see them film I'll take video/pictures if they allow. Or even better, in NJ again