I'm not a big fan of PvP. Since FoC won't have Co-Op in their campaign I hope we have some good Co-Op online modes to compensate.
Realistically I expect Escalation as the only co-op mode. I'm also setting my expectations of it at an exact copy of what War had. Beyond that I highly doubt there will be any other PvE game modes.
I'd love some escalation using your own character and some story related co-op sort of like Uncharted 3.