I finished a really complex lighting system (in addition to the multitexturing) that can support arbitrary numbers of point source and directional lights using an optimal number of hardware lights...the lighting effects should be top of the line and accelerated!
Additionally I finished adding Triangle Strips and Traingle fans (as well as quad strips) to the model format, so a model optimizer and tesselator are both pending. (expect curved surfaces also!)
ashieh has put tremendous work on the game physics and multiplayer expandability. and has almost completed a preliminary AI that will almost do what you click it to... He uses quaternion rotations, etc to compute physics between physics frames. So all is certainly not lost, and expect a really cool demo out as soon as I get help compiling it in windows with VC++!