Yes, the Tesh theme will almost certainly return, but Jim Fagan passed away years ago, Marv Albert is retired, and Bob Costas and dikk Ebersol have not worked for NBC in years. Many of the accoutrements that made the NBA on NBC special — from the lasers forming the NBC peacock to Fagan’s voice-of-God introducing the participating teams (“TO-day, it’s the Chicago Bulls versus the Or-lan-do Magic!”) — had been shortened or phased out by the end of the network’s run and are unlikely to return in the new iteration. There will undoubtedly be more ESPN NBA alums on the new version than veterans of the original NBC run, if any return at all. Yet it is hard to blame viewers for retreating into the past given what ESPN is doing in the present.
That's a big reason why NBC was loved. Simply hearing Roundball Rock isn't gonna make the presentation tolerable.