When a user asked about it a GPG developer said "it's a secret!" Then they added "until it's not", ensuring we are thoroughly teased to our limits.
"It's a secret!" gpgsteve. "(At least until it's not a secret.)" It would appear that GPG has some DLC goodies in store for loyal Supreme Commander 2 fans, which is great because it’s been far too quiet on the ACU front. Do you still play, videogamer?