Would it be possible to have a wad-type system eventually? I'll explain;
In some games you can load .wad files that contain some information that changes the game for that one running only. It could be used to, say, add new characters or modes. Of course, new characters and things is a long shot, but it could be useful for custom game modes.

By the way, would it be possible to add some sort of substitute animations to 1.23 and allow play with 1.24, so the animations when someone plays as Lori aren't screwed up?