Well, you already have that with the Enma followup. If you want to go for big damage and they are close enough you can try, but you can get hit out of it.
A cancel is when you cancel the recovery of a move into another move. In Kishuu > OD > stuff that isn't happening, so it's a link. A link is just when you can combo off the stun of a move with another move. For instance, 3C CH > 2B.
As for putting stuff up for the matchup threads, we'll have a fresh start with CP. Although that means we will have to relearn a lot of stuff.
Isuna means though that you could use j.D as a ghetto 6D replacement before, not so much with the height requirement.
If we really want to nail that overhead we still have Yukikaze though.