That doesn't mean it was going to be converted to the Pegasus, get flight pods, different body, head, and engines.
Might I also divert your attention to the tiny detail below the main hull, also known among the experts as "the hangar".
Are you suggesting that the finished model would scrap this design and make it more Pegasus - like? Unlikely, though it does have the advantage of Mobius not being wrong and not having to dispute the indisputable.
The impression I got was that the main shape was finished, and now it needed some detailing work and textures done. Making it look like similar to the Peg would pretty much require a restart.