If Gears Tactical is a Halo Wars type game then yes it was rumored. There was also a Gears Battle Royale rumored. Maybe it’s a mode in Gears 5.I would include Gear's Tactical, as that hasn't been rumored if I'm mistaken.
That said, they did hint that Playground Games is doing something open world that is not Forza related, which could correlate to the Fable rumor from earlier in the year.