This really could go either way, but it doesn't have to be a disaster. It could actually be a very good thing. Just depends on how things are handled by the new management. But isn't that the case with any changes? If the brand wasn't sold at all but just switched out a key management figure, we might get just as much or more changes compared to this situation. So who knows.
I would just point out that Samsung purchased Harman back in 2016 and it seems to be fine. They have different lines for AKG and JBL etc but Revel has since launched some very fine speakers (the F series) which are not watered down at all compared to pre Samsung models. I'd like to see what they do next with the Salon series but that only refreshes every decade or two so it might be a while.