Marque of War’s latest publicly visible return/relaunch point was March 6, 2026, when the official trailer said it would be available to play, and later posts described “Project Mason” as released on 3/6/2026.

What’s shown publicly

  • The Roblox community page is still active and lists Marque of War as a Roblox community.
  • The release trailer explicitly says “Available to play on March 6th!”
  • A later update video says “Project Mason was finally released” on 3/6/2026.

What that means

If you’re asking when it returns after being away, the public info points to March 6, 2026 as the return/release date.

If you meant a future comeback or another reopening after a shutdown, I don’t see a newer public return date in the information available here.

TL;DR: Marque of War appears to have returned on March 6, 2026.