That would have been weird considering Episode III was called Revenge of the Sith. But then again the whole storyline was so repetitive anyway why the hell not.
Yeah, I wrestled with Return of Palptaine, Revenge of Palpatine, and Palpatine's Revenge... but all those titles were taken.
But in the end, that's what the trilogy is supposed to be, so if they just said it upfront (and maybe cut Snoke entirely) it would have made for a more cohesive trilogy. Sort of.
How about The Return of the Revenge of the Phantom Menace...? That's even more correct.