I mean S4 M+ is going to be awful anyway just because people decided to vote for Grimrail and Irondocks for some reason?
Having them all be old dungeons would have been an interesting option also, but it seems they were more interested in just having the mega’s plus some WoD.
Would have liked to have a seen a vote on Cata, MoP, and perhaps WotLK dungeons as well.
Let us see dungeons that never were designed for M+ lol.