We were talking about this in last week's box-office thread, but my bet is that they'll do these three standalone spinoffs (Rogue One, Han & Lando, Formerly the Boba Fett Movie but now Nobody Knows but Maybe it's an Obi-Wan Movie) as they close out the Sequel Trilogy.
Then they'll start in with spinoff films that seem stand-alone, but are set in the same general timeframe, and after three or four of those we'll get one or two where characters and plotlines from those spinoffs are combined.
THEN we'll get whatever Episodes 10-12 are going to be, and the spinoffs between those films will go back to being real standalones.
And then when that cycle runs down, we should be right around the time when everyone involved starts seriously looking at the possibility of refreshing the brand around its 60th or 65th anniversary by rebooting everything.
They still had a readout to figure out how to attack it though.
It's not like it was difficult to figure out. It's entire ass-end is wide open. That readout basically said "Fly up its gaping asshole once the shield is down and blow up the center of it"
Nobody really needed plans for that.