As you may have read on Wikisimpsons, season 27 is confirmed. However, these are all leftover episodes from the last production season, which most of season 26 was made out of.
For those of you that don’t know, a production season is different to an airing season. Each episode has a production code, i.e. TABF14, the production code for the season 27 premiere, “Every Man’s Dream“. TABF is the production season whilst 14 is the episode number within that production season. Most airing seasons will have episodes from two different production seasons, the current and the last one.
So, whilst season 27 is confirmed, currently only episodes from the last production season have been confirmed. There are currently no new episodes from a new production season as no new episodes are being created.
The animators for the show are currently on hiatus, and have no return date to the show. According to one of the animators, this has only happened once in the past. The likely cause of this is due to contract negotiations with the cast taking longer than usual, and that is the popular theory although no confirmation has been given to this as of yet. Therefore, no one is currently working on new episodes. If contract negotiations with the cast fall through, there could only be half a season of episodes, rather than a full season, consisting of episodes from the last production season. This could also spell the end for The Simpsons.
However, don’t panic. That is only a worst case scenario. The Simpsons is a huge money maker for Fox and I doubt they’ll be letting it go any time soon.
EDIT: The Upfronts in May, the days when TV networks announce the shows that are being cancelled or renewed, will likely be the latest we hear some news about the future of The Simpsons.