Hi Romullus,
I see some features like "Triplanar controls directly in Corona Bitmap". But if we had a transform mapping slot on Corona bitmap like V-Ray or f Storm, we can then plug in Triplanar or other mapping features. That gives us many more options. I know we can add more slots to mapping nodes, but that starts becoming a mess when you're trying to plug in a lot of different nodes.
The other thing I see on the road map is "Screen Space / camera space mapping for Corona Bitmaps". Which is great, but why not add all the other mapping options like you have even in the basic 3DS Max bitmap. They come in very useful in many situations.
Version 14 road map looks really great! I'm looking forward to it. Just working on a scene that I'm working on right now with vector displacement sequences, I had a lot of brick walls trying to use Corona bitmap.