I'll probably play it off-and-on, simply for the Tamer aspect. That's literally the only thing that actually caught my interest. I can tame horses? Sweet. Probably won't ever hit level-cap in it, but I'll definitely tame a horse or two. Not sure how many you can tame. Tame and keep.
GW2 still has 90% of my attention. Even with the time gaps between content releases, it still manages to keep me hooked in.