As an avid rebase user, I want to add rebase support eventually. Something like interactive rebase, however, the question is how to improve something that is nearly perfect.

That'd be awesome. :)

If tig started "git rebase" (with or without -i) and then helped me through fixing any conflicts (merge tool?), that'd be awesome.

I sometimes forget where I am during a rebase, so showing how many more commits to go would be cool.