Easy Way to Increase Max Level Content

[Exodyce]

I would love for SE to take(ripoff and tweak) from WoW the concept of Mythic + dungeons.

I think something like POTD as an alternative to M+ is pretty good (not that I would be opposed to M+, it's just there is already a progressive difficulty mechanic in the game). They just have to make a new dungeon diver / up the POTD level.