I think it's best if I say it now. Sort of a good news/bad news post.
I'm getting pretty damn tired of spriting. I keep looking at the Knuckles sprites, and I don't even feel like editing Sonic's walking sprites to be Knuckles'. So, it's really sad, but I won't be making Knuckles, Rouge, nor the Babylon characters. On a non-related note, it also includes making Mighty, or any more characters. But what I will do, is fix up the current characters. Like Espio's arm, or a proper spring-up (or bouncing) frames for some, or by adding more sprites. Like Waiting sprites. That will probably get started after the release of the new Riders mod.
Speaking of which, I guess I'll simply finish up the levels, and make a mirror mode. For the cutscenes, I'm not so entirely sure. Since the birdbrains aren't going to be made, then there's no point for a story mode.
The Exe, well the only thing it really needs is a better Match mode. You're able to boost into each other, but since there won't be any rings on those levels, each boost hit is an automatic death. And I don't feel like messing with the Match scoring code.
Splitscreen mode was cleaned up. Somehow, on Software mode, getting a boosting hit will crash the exe. And before, I got random crashes where it's not supposed to happen. Let's say, touching a normal Speed Pad. They all went away, but the mode is still prone to crash in Software mode. Unless you're playing in Windowed mode, but -win + -software don't go together.
The release date might come in soon. It's just the levels, so it's not that hard for me. I'm not saying this month, but just soon enough.