No, they won't. I'm with the guild for I think 4 years soon. The only way I'm going is by my choice and none else.
We're a guild filled by 30 years old with families and children, we don't have time for that shit to begin with, that's why we raid 2 days a week and 3 hours flat and have no other requirements whatsoever.
The only real requirement is decent skill and not being a shit. That's all it takes to clear Mythic raids at 2 night schedule.