Board Thread:General Discussion/@comment-33436465-20181029090633/@comment-34531605-20181107214157

They always have an event for Thanksgiving (The end of November so around a month after Vegeta) and the same event as Tanabata would make the most sense with the wishes etc. Christmas/New Year will see Future Gohan squeezed in with the Super Broly celebration.

And lets be honest, there is always a double rate banner just before a large celebration so perhaps that is actually the biggest giveaway.