Interesting variant. I'm all for anything that brings more options and diversity to the game. Getting the rights shouldn't be that onerous, and it looks like the wireframes and textures would come with them.
Does this mean that the Ambassador will be an alternate skin for the Exploration Crusier, or that it will be a new type all its own? I am all for those Ambassador variants also being added as skins to the Exploration Crusier in addition to the Ambassador class. Having five or more variations of both the Tier 4 and Tier 5.1 ships(and the Drednaught Crusier if they can manage it) would be awsome!
From what we are told the Ambassdor will bit its own ship and not another skin.
As for the Probert Ambassador, I would love to see it in game. I think Mr. Probert owns the rights to it, but not sure if Cryptic will be allowed to use it. Why? Well lets just say its a private matter.