I rather they leave the dungeon in for the rest of the expansion, as well as other level 100 dungeons. Much less dull having 4+ dungeons to be randomly chosen than only 2, which we'll see come patch 7.2 and onward.

Actually, I rather expert roulette just be all Dawntrail dungeons scaled up to level 100 and ilvl capped so they aren't too easy. I'm only there for the daily tomestones, don't care about the regular drops unless its a minion. Less boring if I don't see the same 2 dungeons every day.