User blog comment:HiccstridFan92/How to Train Your Dragon 3 delayed 10 months/@comment-26219548-20161208155711/@comment-23825763-20161209200352

Maybe the mate is why they needed to push it back? Perhaps they needed to find a better way to work her relationship with Toothless into his relationship with Hiccup? I'm just speculating, but it could be possible.