No. The next main Halo game has always been stated to be coming to Xbox One. Why change that now less than 2 years from launch?
Thankfully, Nintendo still gave older hardware owners their due with TP and BOTW being cross-gen. Microsoft should give Halo fans the same treatment. It probably would've made more sense for Halo Infinite to be a Scarlet exclusive, but not anymore.
Lifetime Sales Predictions
Switch: 156 million (was 73, then 96, then 113 million, then 125 million, then 144 million, then 151 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 48 million (was 60 million, then 67 million, then 57 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima