Getting rid of the holy trinity and making every class able to heal and res (in combat) is pretty damn innovative. The "Fight for your life" mechanic from Left for Dead in an MMO is also pretty original.
Class synergy via skill combinations (Firewall + Arrows fired through = Fire Arrows, Healing Ground Target + Projectiles fired through it = Splash healing around the target) is innovative.
Combat that changes underwater with skills completely different skills available to mobs and players, along with no breath meter and areas designed for exploration...that's pretty innovative.
What they're doing with open world events isn't innovative, but it is evolutionary. You fail an event, it doesn't mean it stops. It just means another different event starts up as a result.
Active combat with dodging that matters along with on the fly weapon/skill switching has been done before, but not well. I'm hoping they refine it to something fun.
What they're planning with PvP isn't innovative, but again evolutionary. I'm just thankful a developer realizes the importance of have 3 sides in open world PvP. Hell, even Mythic forgot that lesson from DAOC.
It has plenty of innovation, but you're right in a way. It's the evolution of the genre more than a "revolution", but for fuck's sake the genre needs to move somewhere.