You've joined WoW too late to get the most out of the game. If leveling bores you now (and trust me, you're NOWHERE in the game, you haven't even started until you hit the 40's.), it will kill you in the end. Then you will join 'raids' that is so easy it can be pugged. The sense of accomplishment is long lost in the game. It's one long great grind, rep faction grind, PVP points (don't even remember the name for it anymore), gear grind, mats grind etc etc.
I'll advise you to play and see for yourself if you like this or not. All I can recommend is to not to get too involved in the game. I did, and it was not worth it in the end. I'm still friends with a lot of old WoW buddies, some who still play. All they talk about is old raid war stories of some kill or some wipe we had, moaning about certain mats that's hard to find, epics that refuse to drop, areas that is over farmed, people in the community or guild not pulling their weight, a healer that is too slow off the mark, a tank that cannot keep agg, a stupid DPS that cannot stop pulling agg, etc etc etc. It can take over your life. Be warned.
I'll advise you to play and see for yourself if you like this or not. All I can recommend is to not to get too involved in the game. I did, and it was not worth it in the end. I'm still friends with a lot of old WoW buddies, some who still play. All they talk about is old raid war stories of some kill or some wipe we had, moaning about certain mats that's hard to find, epics that refuse to drop, areas that is over farmed, people in the community or guild not pulling their weight, a healer that is too slow off the mark, a tank that cannot keep agg, a stupid DPS that cannot stop pulling agg, etc etc etc. It can take over your life. Be warned.