You have fantastic ideas Red!! I totally agree for most of them, includings the bubble chats, new between-map screenslides, music, weather (although I'm worried about the lag here XD).. I also would love new emotes, and the list is infinite here. Emotes that are useful like "nuzzle" or "high paw" would be awesome.
The one point I absolitely agree with is the mini-Mods in groups, that would be so helpful for big RPs..