This is an interesting idea!
Some ideas popped into my head regarding what could be implemented from TROS, but honestly less might be more, depending on how much you cut from TFA and TLJ. I think putting the TROS montage of the Star Destroyers in between Leia saying “We have everything we need” and broom boy is enough really.
For the titling, you could just make it, STAR WARS: HEIR TO THE JEDI - Part I & II.