RP. RP is great. It's a very self-sufficient source of content that never dries out.
Outside of that questing, exploring, getting some nice transmogs, some mounts, cool pets or funny toys is always an enjoyable time.
Trying out different classes, specs or talent setups for the hell of it.
Trying to level up professions to maybe find an useful or just amusing new recipe.
RP. Did I already said that ?
The occasionnal PvP though as you said, queues aren't exactly popping left and right.
Writing guides, that does take some time.
Just wandering around the world appreciating the work the art/music team put in the game.
RP.
I'm not into achievement hunting, never really have been but I managed to get to 6700 points back in early DF before I subbed for the first time. Prolly would be around 7K now if I stayed f2p, maybe more idk.
I'm hoping TW dungeons will be fun or offer any special loot. We'll see.
Searching for out-of-the-way places, hidden lakes, houses, whatever. Made a lot easier by flying, mostly useful for RP.
And RP.