https://gematsu.com/2017/12/bandai-namco-announces-jump-festa-2018-lineup-stage-schedule
Bandai Namco has revealed their Jump Festa and Jump Festa is on the 16th and 17th of this Month.
While they only list things that have already been revealed keep in mind that it doesn't mentioned My Hero Academia One's Justice which is supposed be revealed tomorrow but got leaked on Friday.