Personally, I wouldn't mind having a Predator/Forward Observer module available for our community. Imagine the online multiplayer possibilities with these tools.
You as the forward observer or JTAC observer reconning the battle area. Talking with your mates (who are flying the fast movers or helicopter modules) on Teamspeak. Painting for them a picture of the enemy, directing them to their strike zones. Then, having the ability to call in artillery. More choices in DCS means more fun.
I would gladly pay for these.