I haven't verified this with the rest of the development team yet, but I will be compiling our own Metamod. It will be COMPLETELY BACKWARD COMPATIBLE, it will simply be patched against the newest HLSDK, which hasn't been done since November 23, 2003. We will also include the NS 3.0 patches. It will appear as "Metamod X" under the version so the difference is obvious, and I will be submitting the patches to Will Day so hopefully he will fix the issues.