There is this theory Slender Man Sonic was just a ruse to generate buzz but given how bad others Hollywood movies been lately I won't discard the old Sonic going to be the real finished product.

However, I also think deep inside they know they had a dud in their hands and they opened the possibilty of a re-shoot even before releasing the trailer. Hell, I won't discard they already been working on the redesign before the terrible fan reaction.

I still think it will be a very vanilla summer comedy BUT between Jim Carey performance and non-ugly Sonic it may be a passable option. Just don't expect anything videogame related outside Sonic being there.