No, it won't. At least not from us. Why won't it be for GMod? Well;
- The map is upscaled, AKA too big, unrealistic proportions for players
- It currently has no natural lighting, all lighting has to be done within SFM
- Maps compiled for SFM use a newer compiler than the compiler for GMod, so there's a good chance it just simply wouldn't work
- Almost every texture is custom, so that would mean we'd have to pack all the textures and we don't have the time
- As far as we know, the doors wouldn't work either.

If you're able to port it to GMod yourself, go for it but be sure to credit us, and keep it up to date with any updates we put out for the SFM version.