When will the next top down shooter release?

Like Spartan assault and Spartan Strike.
When do you think is likely and a good time to? I think in a few months, so we have a new game to play while we wait for halo wars 2, however this is very unlikely.
I’d say most likely Early-Mid 2017, 6-9 months before 3 Anniversary comes out. (If 3A does come out)