The Champion System. This system is available to all Veteran Ranked characters as a way to progress once the main story is complete.
Champion Points can be earned periodically and then spent on Champion Passive abilities within the Warrior, Mage or Thief constellations. Apparently these will be very powerful passive abilities.
Also introduced is an Enlightenment system, something that is earned over time, whether logged in and actively playing or not, that increases the amount of Champion Points that you earn.
Whether or not this can revitalize the game, it’s uncertain. They are, though, rather committed to bringing a good experience to their world and inviting more players. I believe that Bethesda is also looking at a free-to-play model to help bring an even larger player base. Does this mean that it might cheapen the Elder Scrolls Online experience? That’s to be determined I suppose.
As of 10:30AM EST the North American servers are down as they apply patch 1.6.6. European megaserver is due to be patched at around 2:00AM GMT on Tuesday. Details are as of yet unannounced, but will be available once they’re done patching.