Is 3.1 going to be big or not?

[Gilraen]

In fact every patch had two hard mode dungeons added.

Actually, the trend hasn't been two Hard dungeons but rather a Hard dungeon and an entirely new Expert dungeon. Further, every Trial after Praetorium has been a Hard trial with further revisits to the Trials being labeled as Extreme. The original three primals of Ifrit, Titan and Garuda are exceptions because of their early appearance during the main story. Heavensward added the Trials of both beastmen in their Hard and Extreme forms so the only one left is... wait, no, goblins have Alexander and he's a full blown raid. Also with a harder mode in Savage. There's no foundation for another Hard trial yet beyond giving the only other trial not possessing an Extreme mode an... Extreme mode, Knights of the Round. So far nothing in this rather large patch is lacking compared to past patches.