Cut bait and run, don’t resub. If you are coming back looking for a guild that won’t fold and will keep running through Naxx, those have been full for awhile. Now you are just rolling the dice entirely hoping someone else quits and you get lucky somewhere.
Save your money and time, reflect on your memories from Vanilla, move on to another game.
All these flavors and you choose to be salty.
Sorry, Classic’s going to do great, Skog.
Also: speaking as someone who has spent all day fiddling with the spreadsheets for two raid rosters, I can tell you that pre-launch raid comps are a game of musical chairs even for stable guilds with a strong internal culture.
People quitting on you is a fact of life, because life happens, and a dedicated raid slot is a major commitment.
Myth is looking to dominate content and crush content in vanilla on Herod Alliance. recruitment still very much open seeking all no lifers and neckbeards feel free to hit us up 
Honestly it if blizzard sticks to release time they did in vanilla even casual guild will see naxx this time around. Figure 12 weeks to gear and lvl everyone to 60 is still 5 months to clear MC before BWL which will not be a challenge like it was meaning easily 4 months or more on farm. So prepared for BWL day 1…4 months in BWL before AQ40 event so BWL will be on farm easily and 8 months between AQ40 and Naxx…if blizz release on the same schedule most people will be ready for Naxx this time around. Players are overall better so the 2 and 3 boss mechanics wont last long, addons are better, this isnt vanilla where everyone is a noob and has no idea how to play
This Guild isn’t going to fall apart its going to thrive check this out [H] Guild on Fairbanks Pvp Server LFMs
ATM, Do not get excited about any guild unless VERY organized or your buddies.
Expect to level with a guild up to 60. Join a guild at 60 that is entering into raiding. Then find a good fit guild. It could be your current if lucky or another guild mor accommodating with schedule. I would 100000% advise chosing a good guild fit by raid attendance/schedule over progression.