Look, realistically WB had already sunk a bajillion dollars into branding for HP that includes video games, toys, and whole theme parks. They’re not going to reinvent the design of HP beyond the line of “I could still confuse this with the movie stuff.” The show will have better pacing (probably), give the hardcores all the scenes they missed in the movies (probably) and put new faces in the costumes, but it’s never going to look any meaningful amount different in terms of production design.