We know that this current season of The Office will be its last, although fans have been constantly wondering whether or not Steve Carell will return as Michael Scott for the series finale. Today, NBC president Bob Greenblatt revealed that it is unlikely Michael Scott will make one last appearance in Scranton.

"I'm hopeful, but I don't think [Steve] will be back. He left in the way that he wanted that character to leave. There's maybe a little hail mary pass on a cameo, but I think the decision is that he [doesn't want to compromise] his [original] exit."

Bob Greenblatt did confirm that the finale will be a special one-hour episode. Executive producer Greg Daniels also said they do have a few ideas on how to bring Steve Carell back, but he isn't sure the actor will go for it.

"We have some cool [story ideas]. But we're still not 100 percent sure Steve [Carell] will want to participate."

NBC hasn't revealed when The Office series finale will air, although a Thursday, May 9 date has been rumored. The show returns from its holiday hiatus with "Lice", airing Thursday, January 10 at 9 PM ET on NBC.