Megan shouldn't be talked about until she actually steps into the octagon - otherwise she should just go away.
As for her "personal issues" it's widely known about her visa issues (she came to the US as a visitor and as such can't get a proper visa to work here. Then there's the issue that she can't leave (like to go back to AU) because once she's left the country she won't be allowed back in.
The only thing that's kept her from being kicked out is that her management team is trying to fight her visa problems.
Beyond the visa issues the only other item is the rumor of her abortion, but I'm not sure a solid source has publicly verified that yet.