i wanna go to my friends guild that is on a diferent realm than mine, if i change realm now and mop comes out in less than 60 days, can i still get realm first lvl 90?
MoP won't be out in 60 days. You're fine.
You can't get realm first before 60 days has passed but there is no chance MoP will be out in 60 days.
If MoP was less than 60 days out we'd know about the release date already.