That article has to be bs.
Why would she and XL have a disagreement?

You really think she'd leave XL? And they have no control over her, why would they be clashing?
It's not like we weren't told before that the album could come in 2015. lbr, we haven't gotten the album because she probably doesn't want to be in the public eye again the way she was with 21. The minute she announces/releases anything, all of the attention and press is coming back her way and we all know she hates that.