I think it will happen sooner than you think,” Ayanbadejo told Aaron Wilson of the Baltimore Sun. “We’re in talks with a handful of players who are considering it. There are up to four players being talked to right now and they’re trying to be organized so they can come out on the same day together. It would make a major splash and take the pressure off one guy. It would be a monumental day if a handful or a few guys come out.
This isn't seeming like a "long time" thing and if they are talking to multiple players in a coordinated way then YES the locker rooms already know they have gay members as if that wasn't obvious. The lack of outing by team members is a strong indication they will be accepted rather than egregiously ostracized.