Board Thread:News and Announcements/@comment-26915466-20190303090602/@comment-26915466-20190330155700

Yeah, cuz once they did GVS1, out comes a Dragon Ball movie. Once they do GVS2, bam! Out comes a new anime.

That said, I don't think they were being done to commemorate those events. They were planned long before them, actually, as others have said.