Tepper's impressed me from the viewpoint of how he's not treating the team like a side hobby (as some on the board suggested may be the case). He genuinely seems more involved (and seems to be having fun doing it) than we expected him to be when the original purchase announcement was made.
Still, a business is a business. Having been with any number of companies that have been bought/sold over the years, new management is always smart to sit back and see what is/isn't working before making dramatic changes.
HBO Max already shows DC stuff: Titans, Doom Patrol, Swamp Thing (soon), Stargirl (among other CW shows).
I highly recommend Doom Patrol and Titans to any comic fan. Both getting new seasons on HBO Max.