Given how merulina, a K-Drive, despite all of its K-Drive-related problems, managed to be able to be used everywhere, I can safely say it is out of the question. It's probably DE hasn't even thought of it due to the lack of player demand.
Ceilings? We can already constantly hit the ceiling with the insane freedom of mobility and a certain birdframe, I don't think adding the Kaithe will exacerbate the problem to be honest with you.