Oh yea, I was meaning to come back here and share my thoughts on this.
First time I saw it, it weirded me out. Not nearly as much as the initial poster drop, thankfully, but still pretty off.
Once again I've made my own edits:
Honestly the only things that really bothered me were the no socks and gloves and a bit of the proportions. Other than that, I honestly don't hate this design. It's weird to me that people are actually upset about the separate eyes, but to me that actually makes a lot more sense. It only looks weird because of the middle mouth, but the two eyes are much better with the side mouth that I gave him.
And to be even more honest, the design has actually grown on me quite a bit since I made this edit. The trailer screenshot still freaks me out, and I'm dreading how he's going to actually move, but looking at the render I can tell it's Sonic and I'm at the point where I can see some aesthetic appeal in it.
Don't get me wrong, this still really isn't Sonic, and his original design has much more appeal than this one, but surprisingly my opinion has swayed from "Kill it with fire," to "This is alright."
Now we need to see Eggman...