Will it just be the two factions like original COH?
Will multiplayer have a check-sum type deal to stop the rampant maphacking?
Will you use any of the awful COHO unlock stuff?
Are you using the same stealth system (Invisible units can move even in the open, you can drag a stealth AT gun across an open field and as long as they don't bump into anyone they are invis)?
Are you using the same lookup table type damage system as in COH or streamlining it?
If anyone gets the port forwarding issues they had in COH are you aware that you will be literally murdered by them?
Will there be any unit customisation/army patch type things like DOW?
Will there be a battles mode or something similar to the Total War series where you can purchase an army with X value and fight them out, no objectives no resources tabletop wargame style?
Will air units be implemented in the same way or reworked?
You're not adding melee, are you?
Will you be adding any sort of maintenance/attrition style mechanic to represent the terrain conditions?