Ain't it great that it's optional? 
I don't see it as being all that "optional" if it would require me to go out of my way to replace a model that, in my opinion, doesn't belong in the MediaVPs to begin with with a technically inferior retail version, especially considering the fact that it would be the only one I'd feel would require it. Correct me if I'm wrong, but isn't the whole purpose of the MediaVPs and the content therein to provide an audiovisual upgrade to the retail content, not to swap out ship models willy-nilly with something drastically different just because some people aren't fond of the original design? I've heard a lot of complaints that the Erinyes looks like a glorified flying clothespin; does that mean that someone should re-imagine it as a clothes hangar and throw that in the VPs?
Look, I think it's great that TrashMan is modeling a concept-art ship, and I think what he's doing is fairly cool-looking. However, even putting the principle of the thing aside, it doesn't work as a replacement Colossus at all in my mind. The front end looks far too slimmed-down, to the point where it flows right into the neck without much interruption. That huge beefy midsection that was probably the Colossus's defining visual characteristic is almost completely gone. And the back end seems rather abbreviated to propel a ship of that size. As a model in and of itself, it looks great; as an "HTL Colossus"...just no. Someone earlier mentioned the partial Colossus that a modeler started on a year or so ago; in my opinion,
that's the sort of thing that belongs in the VPs.