Having done the entire thing and recording it for the 15th anniversary, I'm not sure they need to do it again. But a mini-set like what they did with the Awake/SFAM material on the AFTR tour, or something like that, would be a great way to acknowledge the anniversary. Even if it is only maybe 3 songs, that would be cool.
Personally, I'd take THK, OAMOT, LFAGA, and SS, since the first two are favorites that haven't been played much in awhile, and the latter two are just rarely played in general.