I know that GameDevelop is mainly 2D, but I think a nice 3D mesh extension would be really nice, where it can load the mesh data form OBJ format and texture coordinates so we can make decent 3D games.
Even if it could just handle tris, I think it’d be really neat!
(What would be really cool is 3d lighting (possibly realtime shadows too) , physics, support for bump, normal, emit, and specular maps, stuff like that, but I think it’s turned into fantasy now, XD)