This upgrade will probably be the perfect time to replace the engine, and maybe change the Sonic sprites as well. Also, this game will be converted into widescreen and add lot's of new cool stuff!
I'm guessing we'll be moving the game entirely to TurboWarp, again, I guess. Although, it should still be open-source like all other projects on Scratch and redirected from the Scratch project page with the link in the instructions. People can still love, favorite, and comment on the project as normal as well. So, there's that. I hope everyone is fine with this.