It appears that according to the Digimon 20th Staff account that there will be a big announcement coming!
It is the 1st Anniversary of the movie tomorrow.
— デジモンパートナーズ【公式】 (@DM_Partners) February 20, 2021
The announcement is going to happen on the 6th March 2021.
The people who will be attending will be Taguchi, Kenji Watanabe, Seki SV, and Kinoshita which will give an inside story about the movie.
The announcement will happen after this. It isn’t known what the announcement will be just yet.
Not too long to wait.