I keep hearing rumors about which cast members are leaving, then others that they are staying example Chris, Lea, Cory. Does anyone have any definate info?

I think that Chris, Lea, Cory and might be leaving, but Lea and Chris might get their own show. This is all I heard, sorry.

ok so here's what i know,
Chris, Cory and Lea + mike chang (sry forgot his real name) are definately leaving the mostra cause it woud not make sense for them to stay as they are seniors and are graduating.
BTW: Jenna is still on for one più anno as she is a junior.
as for the rest of the cast is just speculation of what gade they are in as it has never actually been clearly stated like blatantly,
ok back to them leaving, they are leaving ( includern darren criss) but there has been a lot of rumors saying that lea, chris and darren are getting a spin off. lea, cory and chris as detto da ryan murphy " they might make guest appearances".
so conclusion, yes cory, lea and chris are leaving as to what may happen next, we have yet to find out.. :)

No, that's not true.
At Comic-Con 2011 Brad Falchuk told the press: "Just because they're graduating, doesn't mean they are leaving the show. It is not our intention to let them go ... they are not done with the show."
Also, in an interview Chris detto that it was a misunderstanding. Interview here: link