AJ has a current deal with Showtime, he won't be on HBO anytime soon although without doubt their longterm goal is to get him, that's why they fought so hard for a piece of the Wlad fight. Both companies, obviously, consider him a potential massive PPV star in America.

As Memphis said - AJ leaving Hearn is not only inevitable but Hearn has never made a secret about it from day dot. You can pull up dozens of IFL interviews with Hearn joking about AJ giving him a job and explaining exactly why AJ Promotions will stand alone in the not too distant future.

Also AJ already has a big management firm that doesn't just deal with his own affairs but also manage a bunch of top prospects - Buatsi, Okolie, Olympians etc..