"I've reached out to them and they've reached back," Sheen told TV Guide Magazine in September. "We're trying to figure out what makes the most sense. If they figure it out like I've presented it to them and they want to include me in some final send-off, I'm available and I'm showing up early. If not, it's on them."
Sheen notoriously exited the show in 2011 after a war of words with executive producer Chuck Lorre. It's not clear how his character Charlie Harper would be brought back, as he was killed off the show.
This past summer, Sheen was videotaped telling a Taco Bell drive-thru employee that he was "f**king hammered," which can be seen in the video below.