Saw that mints, bottle caps, hold items like the choice items and ability capsules are available for money now, and the word is there's no Battle Tower equivalent - the post-game school tournament doesn't restrict levels or anything. So I guess BP is gone.
On the one hand, if money is easy to farm then I'm super glad BP grinding is gone, I always hated that. But I do feel a bit sad if even the Tower is gone - it felt like the last vestige of when Game Freak actually cared to provide endgame battling PvE. Maybe we'll get more experiments like Restricted Sparring in DLC, but I suspect they're all in on Raids and competitive online play now.
At least the Raids sound better than Dynamax Raids. Hopefully, between items being available for money instead of BP and Hyper Training now only needing level 50 the grind to get competitive Pokes will be substantially cut down.