Farm renown from daily events, get xmogs/mounts, farm some gold from your professions/get recipes maybe do a little PvP que arena or bgs, do the new raid, push mythic keys, pet battles, war mode content/bloody token farm and tokens of strife, farm elemental invasions for mount/gear/get all 4 cores, do all the world quests, finish all the regular quests, farm colbalt assembly favor, work on secondary professions, do all the dragon riding races, play with some friends or join a guild to play and do content with other players?
Seems like plenty to do to me.
Maybe just play for fun?