Will Dianna Agron Join Once Upon A Time Season 4 As Elsa From Frozen As Glee Season 6 Gets Delayed Premiere And Possible Episode Cut?

Now that "Glee" is coming to an end with season 6, will Fox alum Dianna Agron join forces with "Once Upon a Time" season 4?

That is the question surrounding the ABC series after the "Once Upon a Time" season 3 finale. When a character who strongly resembled Elsa from "Frozen" showed up in the final moments of the episode, many fans immediately thought of Dianna Agron for the role.

"Dianna Agron already showed she could sing—and play a cold-hearted beeyotch—on 'Glee,'" writes Perez Hilton. "Could a return to TV be out of the question?"

She is one of several names being thrown around, with others like Brittany Snow ("Pitch Perfect") and Kristen Bell also being strong contenders.

Of course, she may also be committed to "Glee" season 6 once it returns in 2015, as all of the original cast members are expected to make appearances on some capacity.

"It will be its last season, for sure," confirmed Fox president Kevin Reilly. However, the episode order for "Glee" season 6 is currently up in the air, especially since the premiere date has been pushed back from Fall of 2014.

"The order is currently for 22, but we're actually going to sit down with Ryan Murphy and really talk about how we're going to end it and figure that out," continued Reilly according to E! Online. "We're going to sit down and talk about exactly the best way to end the show now and how much that is."

On the plus side, this means Dianna Agron can potentially appear on both "Glee" season 6 and "Once Upon a Time" season 4, should she be chosen.

Do you want Dianna Agron to be Elsa?