If this screencap is real, Assassin's Creed Valhalla's upcoming Paris DLC, Siege of Paris, is set to release on 5th August.
Though not officially confirmed by developer/publisher Ubisoft, the second DLC instalment seemingly popped up on an Italian Windows store and was promptly screen-capped before the announcement was removed again.
While all we can do is chalk this up as an unsubstantiated rumour for now, the screencap - shared via CriptAssassINI (thanks, NME) - certainly looks convincing.