Prince of Persia: The Sands of Time Remake won't be at E3, it arrives in 2022
Ubisoft also confirmed that the game will not arrive this year, but in 2022:
"We are making great progress on our game so that it will be released next year,but we are not yet ready to spread more information about it, we will do so as soon as possible... we want to express our gratitude for your continued support and patience throughout this journey. We look forward to sharing more news with you! This is what Ubisoft Pune and Ubisoft Mumbai have stated.
At this point we hope not to wait too long even after E3 to know what news awaits us in this remake.