"It's Always Sunny in Philadelphia" wrapped a strong 12th season in early March, but fans may have to wait longer than usual to get a glimpse at Season 13.

How long? Try 2019.

Kaitlin Olson, who plays Sweet Dee on the series, recently spoke with TV Guide about the show, telling the publication that they "ended up pushing our next season a year." That's not exactly great news for "It's Always Sunny" die-hards.

"We were all busy with separate projects this year," said Olson, star and co-executive producer of Fox's "The Mick." "So at the end of this coming shooting season of 'The Mick,' I'll step right into 'Sunny' after that."

As TV Guide notes, that purported delay in filming could push the Season 13 premiere into early 2019. The show has debuted its past three seasons in January, though earlier seasons kicked off mostly in September. Neither production nor air dates have yet been set, FXX told TV Guide.

The show, however, will go on. As Deadline reported last year, "It's Always Sunny" is on the hook for Seasons 13 and 14 of the show at FXX.

Star Glenn Howerton, who plays Dennis, may not return. He told the Wrap in March that he "might be" done with the show, and that it "may be taking an extended hiatus between Season 12 and Season 13." The actor is involved with a sitcom pilot for NBC titled "AP Bio," a show from Seth Meyers and "SNL's" Mike O'Brien featuring Howerton and comedian Patton Oswalt.

"It's Always Sunny" co-creator Rob McElhenney, known to fans of the show as Mac, is working on "Minecraft," a movie about the popular video game, a project he's been attached to since 2015. IMDB.com indicates the McElhenny-helmed film starring Steve Carell is scheduled for a 2019 release.

Charlie Day, meanwhile, will next appear in "Pacific Rim: Uprising," set for release next year. Danny DeVito, who plays Charlie's best friend, Frank, is performing in a Broadway run of Arthur Miller's "The Price."

Season 12 of "It's Always Sunny" was a record-breaker for FXX. The season's premiere was the network's most-watched original telecast ever. The show is also on track to tie "The Adventures of Ozzie and Harriet" as TV's longest-running live-action comedy once Season 14 airs — whenever that may be.