So far ESO is a hybrid between the traditional MMORPG genre and the ES universe. Whatever future lies ahead, please try and stay true to our current formula. If change is to happen, learn from past MMORPG mistakes of what doesn't work, even though this is trickster.
My subjective opinion is that ESO should have less emphasis on gear progression and through its item stats grant further segregation between PvE and PvP. That it can be possible to use same gear in both PvE and PvP, just that you'd have to trait it and have different set bonuses. That you shouldn't worry that in X time your gear will be subpar, because gear stats have a significant impact on gameplay.
Spellcrafting is a prime example of something new and promising. Introduction of new gear is great, but please keep the item stats in mind vs the stats of crafted gear.
This trap is something I feel many MMORPGs fall in because it becomes a pattern with new timeconsuming gear updates.