Today, a brand new C&C game was revealed (though not officially announced) codenamed "Tiberium"

"According to Game Informer, the C&C FPS, "Tiberium", is to be set 11 years after the end of the 3rd tiberium war. You'll play Ricardo Vega, a Used-to-be- retired GDI field commander. I'm not going to rewrite the article, so just think of it as GRAW + Battlefield + R6: Vegas in the C&C Universe. So far, you'll be leading a R.A.I.D (Rapid Assault and Intercept Deployment) around the location of the tower in the Mediterranean Red Zone that NOD defended until it was built. There's no mentioning of you fighting NOD, but you will be fighting new Scrin infantry (the two given were Shrikes, little knee-high robots with blasters an a self-destruct, and Archons, think Scrin versions of Elites from Halo)

The units that were announced that you could command were standard infantry squads, missile infantry squads, an ugly version of the Titan, and new Orcas. You'll still get special powers, like an "Orbital Slug" that you can call upon your foes."

Scans from the Game Informer magazine:
http://forums.cncnz.com/viewtopic.php?p=127234
http://www.cncnz.com/gallery/thumbnails.php?album=42
http://www.cncnz.com/gallery/thumbnails ... =42&page=2

Early leaked CGI video believed to be a concept trailer for C&C 3: Tiberium Wars (since the video was leaked before Tiberium Wars came out):
http://www.youtube.com/watch?v=XdhdPSwC6zc