It's nothing to do with the porters. Forge needs finalised (may already been done - i've been away for a few days). Then the makers of the mods need to update to the latest version, to enable the porters to get porting.
There's nothing wrong with 1.2.5 nor is there that much exciting stuff being added to 1.3.2 to rush things!
To be honest if I were a mod creator, I would be holding off until 1.4. Screw updating once, then updating again to the new API.