How to Train Your Dragon 3 has been moved from its June 17th, 2016 release date to June 9th, 2017. It's possible that the previous release date that put it head to head with Pixar's Finding Dory and possible script development trouble gave DreamWorks Animation reason enough to move it. Dark Horizons observed that this now puts How To Train Your Dragon 3's opening only two weeks after The Lego Movie sequel.
I really love both How To Train Your Dragon films. They are my favorite DreamWork Animation movie. The sequel really raised the bar, and I hope they will be able to create a strong third film.