Watch them simply pivot to a Plagueis and Palpatine show without the twins
Honestly, I'd be fine with it. The twins storyline just didn't pay off for me, so a Plagueis and Palpatine series would be interesting. Although I do think they need to get away from the prequels/OT era a bit. The Acolyte did a little but they also had connective tissue to the prequels with Plagueis, Ki-Adi-Mundi, and Yoda.
I do wonder how much meddling Disney/Lucasfilm did with this show and how much was the actual creators ideas and writing. I think part of why Andor is so good is it seems they left Gilroy alone to do his thing. And he's also probably just better at it than the showrunners for most of the other SW shows.
They need to figure something out at Lucasfilm. The misses with their shows are starting to outnumber the hits and the hits on streaming were basically keeping the brand relevant because they can't get a freaking movie out to save their lives. That side has just been one long list of lost directors, cancelations, and delays for the last 4+ years.
Eventually people are going to stop giving a shit if you keep giving them mediocre products or cancel every show that isn't an immediate hit.