Zerospace: RTS/RPG mash up now on Kickstarter
Zerospace: RTS/RPG mash up now on Kickstarter

www.pcgamer.com
This ambitious RTS/RPG mash-up from Starcraft pro players draws inspiration from 'games like Mass Effect or Baldur's Gate,' and it's on Kickstarter now

Others have mentioned Stormgate, but I think the upcoming Tempest Rising is more in the Command & Conquer vein
BAR might scratch your itch. It's also free and open source
BAR is really more close to supreme commander to the point that when i first saw it i was thinking "wait what they made a new supreme commander"
There's also Stormgate coming out later this year from a load of the former StarCraft developers.
i have a feeling that if there is going to be a good rts in the next few years its going to either stormgate or zerospace