It doesn’t have to be different, but if it isn’t why would Paramount be interested in making it? TNG and DS9 overlapped and were different, same with DS9 and VOY. But TNG and VOY were also very different. I suppose if someone would come up with a cool idea for a Una spin-off that is not just a direct continuation of SNW there might be a chance. Personally I’d be more interested in something set after TNG/Lower Decks to get away from the TOS era, and also stay away from the DIS 32nd century stuff.