Just general nerfs to rein back some of his power while keeping his overall design the same.
As for the ground bounce from airthrow, it depends. I would guess that they actually made the bounce far enough that you can't combo... but we'll see. Might just need to do OD off the 2nd hit rather than the 1st, but that seems like a pointless change if they are trying to attack airthrow into OD stuff.