This isn't so much a feature suggestion as a feature inquiry...while I think the functionality would be interesting/useful, it's not necessarily something that I'm currently planning on using (if it was there, though, I'd try to work it in somehow).
Question: Is it possible to move 3D scene cameras in real time? And if not, is this functionality even possible?
I've recently been looking into moving my project into the 2.5D realm, and thought it would be cool to do a sort of view transition between different views of a room, rather than just an instant jump. This technique has been used in some other 2.5D games - the one I can think of off the top of my head is Final Fantasy 8...the idea is, if you can move the 3D camera and have a video file which visually mimics the 3D camera's movement through a scene, it would appear that that the entire environment is moving, with the 3D model moving in correct relation to the rest of the scene. These would also be useful to transition to a cutscene directly from the scene view in a more immersive way.
So, it's easy enough to make the transition videos, but I was unsure about the 3D camera stuff.