Question
Does ESO, and Project Destiny for that matter, point to a new era of MMO RPGs? Yes, I know there is Final Fantasy and even Phantasy Star and others before that. I consider these similar to Dark Age of Camelot or Everques still more fringe.
Reasoning
I argue the biggest reason WoW created such a large fan base was because it brought players from outside the MMO RPG crowd. For example both my wife and I played Warcraft 1-3 which brought us to WoW.
Elderscroll games have attracted many non-traditional RPG console players. The first person action game play, and Oblivion's timely release increased ES console fanbase. It was arguably the best game released when selection on the brand new Xbox 360 and PS3 were slim.
Elderscrolls Online can capitalize on both a broad non-MMO RPG fan base and early release in the new consoles life cycle. Project Distiny is in a similar position; early release in console lifespan and though its not in the Halo universe, Bungie is well known by its fans.
Conclusion
Console connectivity is no longer a limiting factor. If ESO and Project Destiny are engaging well built games we could see a number of MMO RPGs this console cycle.