While replying to some Tweets, Treyarch stated that more new weapons are scheduled to launch for Call of Duty Black Ops 4 during Spectre Rising Operation.
New weapons in Spectre Rising Operation
Fans have been curious about a new Sniper rifle since the release of Operation Grand heist in the game. The sniper rifle was showcased back in February during debut trailer of the Grand Heist. Treyarch said that they pushed back the weapon to Spectre Rising operation, but no release date is confirmed for the weapon.
More new weapons are planned for this Operation… and not just the ones you think you know.
— Treyarch Studios (@Treyarch) May 13, 2019
The current Contraband Stream for Spectre Rising will end on June 4th for PS4. On that day, the Days of Summer event is expected to start alongside the second half of the Spectre Rising. So it is expected to see new weapons for Black Ops 4 during new Contraband Stream.
50v50 mode in Blackout
Ground War in Blackout is planned to launch during the second half of Operation Spectre Rising. The new Operation is just getting started!
— Treyarch Studios (@Treyarch) May 10, 2019
On the other hand, in reply to a Tweet about 50v50 mode in Black Ops 4 Blackout mode, Treyarch confirms that they are working on the mode. They called it Ground War, and they are planning to launch it during the second half of Operation Spectre Rising.