Gears of War is too big/good a franchise for MS to just push away.
I'd hope they would slow down on Forza. One traditional racing release every 2-3 years while maybe someone else makes an open world Horizon type game every other year or so would be good. We don't need Forza becoming Need for Speed. Never been a big Halo fan past Halo 2 so IDGAF what they do there.
Next gen always brings about new IP's. For all we know they could hit on something else huge.