There's video evidence attesting to the fact that at least Marcus and Dom will be playable characters in Capcom's upcoming Lost Planet 2... See for yourself!
TheHolyFragger - 1/27/2010
TriForce Releases Final Version Of 1:1 Scale 'Gears of War 2' Lancer Assault Rifle Replica. Sculpted By Erick Sosa, and Painted By Paul Komoda.
TheHolyFragger - 9/23/2009
Gears of War 2 Enlists 5 Million Recruits Worldwide; “Gears of War 2: All Fronts Collection” Launches July 28 Unleashing All-New Campaign and Multiplayer Content
TheHolyFragger - 5/7/2009