Today Call of Duty put out a blog post talking about what's coming on Thursday, November 16th, which includes Warzone 2.0, new DMZ mode, Modern Warfare II is getting new maps (Shoot House and Shipment), new Raid mode, new co-op mission, CDL Moshpit, and the Season 1 Battle Pass which includes a new Operator and new weapons. You can view the roadmap image they released below and also check out the blog post link.
Call of Duty: Modern Warfare II and Warzone 2.0 Season 1 Roadmap
(Click image for larger version)