I'm playing quite much with it at the moment, so here are my suggestions after some testing:
-Camera Mode Enabled overlay
This bunch of text is quite interesting while discovering the tool, but at some point I think it should fade out completely or get minimized after a while, so we may focus on our composition, without any distracting foreground (ideally the minimap and search icon would disappear too). Also, without that overlay, I'm seeing a lot of possibilities here for machinima or other video recordings, as the traveling itself is quite pleasant to look at.
-Speed control
While being quite pleasant, that camera movement is very slow, and it would be extremely useful to have additional control over the speed, for example with Shift+Arrows for a faster (gameplay) slide and Ctrl+Arrows for slower (cinematic) travelings.
-Position locking
The default camera always follows our character in game, and it could be interesting (for parties for ex) to have a locked mode, so we could move around the screen freely while the camera stays in place.