It's a bit late for that; like Blacklightning pointed out he likely was based on concepts for an unrelated game, but they went and put it in Sonic and now he's all entangled with that, and it'd be hard to find the freedom to build something that felt genuinely independent from Sonic, if he even had the popularity to justify a spinoff in the first place.
And honestly, if they were willing to genuinely go back to the drawing board with how they play, there's probably not many Sonic characters that couldn't work within some kind of standardized "Sonic" gameplay without abandoning their unique abilities. Telekinesis is a pretty flexible ability, it doesn't have to be just plodding around and waiting for something to throw, there's any number of ways they could use it to support faster, more fluid movement and attacks that aren't a complete bore.