Sounds fair to me, and there are a couple of definite starters in there for sure.

I, too, don't believe it will be all G1. It is called Generations after all.

And when it comes to fears about the size of these toys en masse, you have to look at 2013 for Hasbro and Transformers on the whole.

The 4th movie is a full year away, and apart from TF:Prime perhaps being in a 3rd season, there won't be much else going on. So I really doubt Hasbro would leave the filler line with only legends sized toys to keep the passion burning. They've got to give the fans something to keep them interested, and some glorified mini-cons won't do it.