I wish they'd do a successor to Oni, this time with multiplayer (which was promised for the first time, but not delivered).
Did you ever check out the Anniversary Edition mod? It's a massive community-made enhancement to the base game that adds a ton of fixes alongside a really dope mod framework. The reason I bring this up is because it allows for stuff like Oni Team Arena[0], a fake multiplayer mode that lets you basically play team deathmatch with bots. It's super fun and when I first played it, it breathed a whole new life into the game for me.