Maybe they will start broadcasting Wlad's fights again. Depends on the ratings, obviously. Lampley will have an orgasm, and Merchant will talk about "this big beautiful man".
Only problem is Wladimir doesn't blow anyone out of the water. Even guys who he is beating. He jabs, holds and hugs until the viewers are half asleep or his fat challenger is completely out of gas then he throws a meaningfull shot around the 9-11 round. Thats part of the reason HBO won't show his whack fights. Plus this is a mot point because Haye will beat him.
There wont be any reaction by HBO. All HBO cares about is good opponents for Wlad. If Haye gets KOd by Wlad then Haye will be labeled as another overrated glass-chinned nobody that got exposed after building up a padded record. So even if he wins big Wlad is still back to square zero: No meaningful US based opponents that could generate interest for the HBO market.