Quote Originally Posted by Seraphor View Post
I don't think I imagined the part of the last LiveLetter where they said we're getting a virtual FanFest in Feburary and May, did I?
(They didn't say it was FanFest, but they dropped enough hints at it being a special live event where they have "a surprise and totally not the announcement of the next expansion")
It's true. You didn't imagine it. They mentioned this during the Letter from the Producer LIVE Part LX:

Quote Originally Posted by Voltenyne View Post
Fan Festival





(02:49:13)
In light of the ongoing novel coronavirus (COVID-19) pandemic, we have made the difficult decision to cancel the European Fan Festival, similar to the Japanese and North American Fan Festival. As the physical Fan Festivals for all regions have been canceled, we will be holding an event in February 2021 to announce new information.

While this will take place in Japan, we’re planning to make it an online event so players around the globe can participate. We’re also planning to have a 14-hour broadcast on the same day.

Furthermore, we are now considering going digital and hosting an online event in 2021.
This is also being planned as an online event where all players around the globe can participate, so please look forward to it!
They didn't explicitly say "Expansion pack" or "Virtual Fan Fest", but they did refer to the Fan Festivals as the primary reason as to why they will be holding an event. Knowing them, they will be showing at least something in that direction.