This comes as no surprise, but a Rogue One panel was announced for Star Wars Celebration Europe this July. Gareth Edwards and Kathleen Kennedy will be on stage similar to how J.J. Abrams and Kennedy shared the stage at Celebration Anaheim, where Daisy Ridley, Oscar Issac, and John Boyega also made appearances. I could see Donnie Yen, Felecity Jones, and Diego Luna making appearances during this panel. I also think we will get the second trailer for Rogue One.
This panel will take place July 15th.