Ok so I've been screwing around with Sonic in 1.1 a few times. I also did a little bit of ICs as well. Well here is my first impression.
As I said before Sonic can actually kill now. Also his damage racking abilities hasn't changed as much. His gimping game is even more dangerous now, in fact Sonic will get alot more kills from offstage now due to the increased knockback of his aerials. Sonic can handle his match-ups more better now (Probably counters characters now). Anyway let's look at how his moves fare in this.
UAir: Gotten better. Kills at 130% (Needs more testing) or less depending how close they are to the top. Overall, it can kill more consistently.
Nair: It got a little better. It can be used as a kill move if they live past 140%. Good if you hit them offstage.
Fair: Probably the only aerial of his that suffers a bit due to people being able to SDI a bit easier in 1.1. However, it can kill now and is very dangerous offstage.
Bair: Gotten better and still his best aerial. kills at 90-100%.
Dair: better.
Usmash: Garbage, very easy to SDI. Otherwise all his other smashes kill much earlier than before.
Ftilt can kill now at 140-150%(Needs more testing on more characters, but it is comfirmed to kill now) Utilt kills better also.
Spin dash combos hasn't changed although it is harder to follow-up on lighter characters with his DownB spin dash (Spin dash to Bair still works) .
Homing attack needs more testing.
Other things that would need more confirmation is how his dthrow works now. Besides that his grab game is still the same.
Having said that Sonic in 1.1 is a bit more solid than his 1.0 self. He actually has kill options now, and his gimping potential is even more dangerous. His punish game is much stronger than ever. As far as match-ups is concerned, he will handle them better. I'm predicting MK and Sonic will probably be evenish now (Still gonna be in MK favor though). Sonic makes Lucario cry and he will be a huge nuisance to everyone else.
TL;DR So far, Sonic is turining out to be a beast in 1.1 and if it gets picked up, there's a good chance his placing will be much higher.
I'll talk about ICs shortly, gotta see a few things and also still looking at Sonic a bit more.