PlanetUnreal has posted a quote they received from Epic's Tim Sweeney regarding the status of the next Unreal patch. Here are the details:

Yes, there will be another Unreal 1 patch, with the latest Direct3D code (big improvements), network code and server performance improvements. I don't have a date though...we're going through a lot of testing/tweaking on UT now. The Unreal 1 patch might be synch'ed up with the UT demo.