Well, had a friend drag me into trying out this game again. I literally haven't played it since 2011 for a month when Cataclysm came out. I played it for a month when WotLK came out before that, and 2 months for BC before that. Basically every time I've played I get to max level and get bored with the end content grind. That and it seemed that after I got max level and used to my toon, Blizzard would do some massive game changing mechanic nerf to whatever I was playing and make it un-fun to play anymore. Which usually meant I would promptly quit the game.
Not sure if the game will end up the same way for me again or not, but since I have a few friends playing I am willing to give it a try. Strangely I only had to purchase legion for my account and it automatically gave me all the previous expansions without paying for them.
Friend gave me a link to his guilds google docs for list of what player's are playing what and what the guild needs. So I picked a paladin to go prot spec and used my level 100 boost on that char. Of course I feel totally lost at the moment though. Guess I'll be spending my week figuring out what the hell I need to be doing in the game and how to actually play it again.