Just finish 7.3 and then have Wuk go away to "lead tuliyolo" or some shit.
Have 7.4 open with Yshtola revealing that she discovered the secret to intershard travel
7.5 can have us entering the portal, but some shit goes wrong and locks the other scions out; we're speshul though and get to be warped away to shards unknown
>7.55 has us wake up in pic related
>the final cutscene ends with a blitzball rolling by on the crystal clear water
thank me later, i just saved your fucking msq