I've been playing for years, and I still have a lot of content I could do. Like high end PvE, PvP, BLU, crafting, housing.... etc.. I don't think you'll have a problem running out of things to do. I am pretty fickle, and just get bored of content, don't really finish what I start a lot of the time. So it takes me years to do a lot of things in this game. Plus I am prone to burn out.