Okay since Reva is still alive. I am just gonna say my pitch.
What if she returns in The Mandalorian?
My pitch would basically be Din and Reva fall in love, and Finn is their son and Finn is the heir to Mandalore and the Darksaber
aka giving Finn the much needed focus, backstory and treating him like the big deal he should have been in the Sequels
I realize this won’t happen since Disney refuses to move forward and is killing the brand with memberberries/nostalgia porn, John Boyega rightfully refuses to come back after his character was treated like an afterthought. But I think Mandalorian and Jedi Finn would be the best direction to go if they chose to go back to the Sequel era characters.