I like the new banner at The Kickstand, with the concept art Ben, the FT1 Ben, and the FT2 Ben. You could say that the FT2 Ben is less cartoony (his head isn't as trapezoidal). Not that it matters. I'm just having fun with the complainers.
Personally, I expect the new game to try to keep close to the original...but it's going to be different. The technology is different, and it'll be a different game. And I think that's what all the complaining is about (and what it'll be about when the game is released): just the shock of something unfamiliar.