I don’t even care about preserving the Yoda reveal in Empire, it’s just that he’s sooo boring in the prequelsssss.
Indeed! I like having the situational irony in ESB with Yoda (who we know from I, II, and III) screwing around to test Luke. You can even argue that Yoda gets a character arc as the result of his prequel appearances (pompous, dogmatic ass in the prequels becomes a humbled, humorous, wise, but still dogmatic master in the OT).
Still, my attitude towards prequel rewrites is to keep all of the OT twists intact. We never see Yoda, we assume Anakin (and/or an additional Obi-Wan pupil) is dead at the end of the trilogy, and we only see the birth of one kid.