You can earn double XP, double weapon XP, and double battle pass XP all the way through Monday, April 19.
Plenty of changes are coming soon to Call of: Duty Warzone when Season 3 drops and these include an update to the Roze Skin, and a nerf will be applied to the Sykov weapon (thanks, Charlie Intel).
Raven Software has provided information on some changes coming to Call of Duty: Warzone with Season 3.
A balance update will also be applied to weapons such as the Tac Rifle Charlie, M16, and FFAR 1.