dude don't be dumb.
First, Halo is licensed and owned jointly by Bungie and Microsoft.
Second, Bungie on their wonderful and glories path to world domination are working on new projects. They are not working on any new halo games.
Third, 343 working under Microsoft are producing (and reproducing lol) Halo.
So no, Halo isn't ever going to be on anything other than a microsoft console.