I don't see this trade getting canceled and I don't see Danny adding anything (or very little) to make it happen.  Here are my reasons why.
1.  Cavs got the crown jewel in the BKN pick. They will not get better.
2.  IT injury does not appear to be season ending.  Cavs have Rose and Caldarone to cover.
3. Kyrie is very happy with deal from what I read.  If he says he will not wave his trade kicker for any other deal, then that will open new can of worms for Cavs, and I don't think they want to go there.