Outside of the games that are guaranteed/almost guaranteed (Halo, Everwild, Hellblade 2, Fable, Forza) I'd love to see:
- Ninja Gaiden reboot/spiritual successor - Itagaki as Director
- Banjo 3 - developed by Playtonic games in collaboration with Rare
- Killer Instinct sequel
- Perfect Dark - from the Initiative
- Conker 2 - from Double Fine
To be honest though, as the show is only an hour, I don't think we will get much outside of Halo, Everwild, Hellblade 2, Forza and then a little tease for Fable.