Where ROGUE ONE uses small title cards for planets, you could include them literally everytime a character walks into a different building or room.
Lol.
I love this idea so much that I want you to go chronological and do this edit next.
But if you do wait, I think the opening card should be:
“A long time ago, a lot longer ago than last time, unless you’re watching these in chronological order, then somewhat more recent in time, in a galaxy that’s still far, far away.”