What we need is to bring bavck that gameplay balance that Sonic possessed in the nineties.
Not likely going to happen, unfortunately.
See, the thing that's probably MOST important to note is that, Sonic was as good as he was in the nineties, because he was made of the sum of great parts. Without those parts, he doesn't amount to much.
Naka and his original game code. Oshima and his character designs. Yasuhara and his level design. These are (arguably) the three main cornerstones that made Sonic what he was. All of the "Blast Processing" campaigning, the "hip" mascot character, marketing and all that? Wouldn't have meant a hill of beans if these three guys didn't have their hands involved in the project, and then came together to deliver something truly special.
Now-a-days, all 3 of those guys are off, doing their own thing, leaving Iizuka and the rest of modern Sonic Team to piddle along, and just churn out more Sonic games for kids to beg their parents to buy for Christmas.
It's basically the same thing for why Square Enix should probably NEVER do another Chrono game. Without the original people involved, it would likely end up being just something that would just sully the legacy of Chrono Trigger, and who wants that?
[spoiler]...as if that "new ending" didn't tick me off enough...[/spoiler]
I don't know, I actually think Sonic Team could do really well with Tails' Adventure 2. They seem to like really cheesy storylines and extra characters; this might actually be a good way to have Tails and Marine/Cream/Wave/Big or maybe even some other lesser known characters work as a team and allow for co-op play.
No! NOOOOOOOOOOOOOOO! Don't give them ideas!