Halo Wars is nothing special and don't consider any announcement exciting in the least. Honestly 343 studios only job is Halo. There is no reason why there should not be an announcement or teaser for Halo 6. At the very least there should have been some kind of real expansion for Halo 5. But 343 blew it with nothing. E3 microsoft a real disappointment. Even Anthem which looked like fun wont be out till Fall of 2018! really... So I guess there advice was buy a PS4 if you want games to play.