Here's the "bind" I see with this: you get a potentially larger audience. Let's be clear, this is filer material giving the regular series a rest, but still. So for your big, glitzy (?) prime-time debut, the show plays almost exactly as it did in 1995. "Oh, that's still around?" Sure, celebrity appeal might bring you some attention, that's the point. But is that going to have spillover to the regular version? I'm dubious.
But if you have some freshening that's been planned though not yet implemented for whatever reasons (budget, pandemic, getting used to the show), you've essentially blown the shot to impress any added audience with the freshened approach in a primetime, um, showcase.
Now, if you really don't have much in the conceptual stage other than maintaining the status quo, no harm, no foul. Take the few episodes to have some fun, ABC gets some fresh filler and everyone goes on their merry way.
