Ubisoft recently announced that The Division has slipped into 2015, but even that may be too optimistic, says one anonymous source.

Speaking with Gamereactor, the insider said Ubisoft pushed the game to avoid "[doing] a Battlefield 4."

"The Division is without a doubt one of the most ambitious game projects of all time and our publisher has naturally realised this," said the source. "We've been given increased resources, we're hiring lots at the moment and are given a lot of help from other Ubisoft teams which is going to be needed if we are to deliver a finished game by next fall.

"Sadly, I still think that the date is a tad bit optimistic as we still don't have a functioning game and still have massive problems making our multiplayer component work at the concept stage. At the same time both we and our publisher are incredibly happy with our game engine and Ubisoft will naturally make use of it in lots of upcoming titles."

The source said Ubisoft and Massive had closely followed the launch troubles of EA DICE's Battlefield 4, and didn't want to suffer the same issues by rushing to market. The source also quashed speculation that the lead development platform had shifted from PlayStation 4 to Xbox One.

"PlayStation 4 is the more powerful hardware and we feel it is easier to develop for," said the source. "Snowdrop [engine] works better on PlayStation 4 and even if Microsoft do want us to shift lead platform that's not something that has happened."