Just recently a new W3D Renegade engine based mod was announced. It has been called Command & Conquer: Tiberium. The project is headed by Aircraftkiller, who used to design many new maps for C&C Renegade back in the early days. Here's brief overview of this new mod.
You can read the full announcement topic posted here in the W3D Hub Forums. There is another gameplay update topic focusing on the Infantry and Engine.