Yeah, there's no April Fools joke.
I was going to come up with something, like an event where you never meet Maria at the beginning of the game or something. But between work, school, and getting hit with a monstrous flu bug, I didn't have the time or ability to actually implement anything. I've barely looked at the code since Thursday night, and I'm still recovering from being sick (mostly okay now).
Plus, the fact that I have a specific release date of Thursday means that if I released something today, it would look more than a little suspicious.
Anyway, I'm back on the job tomorrow, and I'm still looking to make that 4/5 release date. Should still be able to do it, even.