So, with Gwen Stefani back in, who'll be out? Adam Levine. No, just kidding. Adam will never be pried out of that gigantic rotating chair. Miley Cyrus will actually be sitting out this next round, but she'll be returning for Season 13. We're currently on Season 11, in case you lost track.
So, does that mean that the show has already been renewed? Pretty much, yes. It never really seemed to be threatened, and still brings in a pretty big audience.
What about Alicia Keys? Oh, she'll still be there. Both Alicia and host Carson Daly are scheduled to return for the 12th season. So it looks like the whole "two girl judges" thing is working quite well -- it's just a rotation as to who those two ladies will be.
Here's a refresher on Gwen Stefani, in case you already forgot what she looked like on set.