Based on what's been posted in various forums, the following players are thought to be FAs:
Als: Kerry Watkins, Kerry Carter, John Bowman, Brian Chiu, Eric Deslauriers and Paul Lambert
Ticats: Pete Dyakowski, Cedric Gagne-Marcoux, Corey Grant, Sandy Beveridge, John Williams
Bombers: Jovon Johnson, Alexis Serna, Ryan Donnelly, Aaron Hargreaves, James Johnson, Pat McDonald, Steven Holness
Argos: Jamal Robertson, Dominique Dorsey, Reggie McNeal, Raymond Fontaine, Jonathan Brown, Obed Cetoute, P.K. Sam, Cody Pickett
Riders: Steven Jyles, Wes Cates, Stu Foord, Stevie Baggs, Marc Parenteau, Jocelyn Frenette, Jordon Rempel, Chris Best, Chris Jones, Rob Bagg, Gerran Walker, Andy Fantuz (apparently has agreed to terms and will sign if he gets no bites from the NFL), Chris Szarka, Chris Getzlaf, Marcus Adams, Luc Mullinder, Aaron Wagner, Tad Kornegay, Omar Morgan, James Patrick, Hugh Charles, Wayne Smith, Adam Nicolson, Denatay Heard, Eddie Davis, Kevin Scott
Stamps: Henry Burris (at the time this was posted at the Stamps board they weren't sure if he'd signed an extension or not), Joffrey Reynolds, Sandro DeAngelis, Jermaine Copeland, Ryan Thelwell
Esks: Patrick Kabongo (according the Edm Journal he was close to re-signing), Byron Parker, Jason Nugent, Kai Ellis (according the Edm Journal he was close to re-signing)
The Lions are the only team I don't have information on so perhaps a Lions fan can post that. As well if there are any names missed or if any of the players listed aren't FAs please comment. As I said, the names came from various fan forums so I can't vouch for the accuracy.