StarTrek.com have posted the first preview images of the model, but do stress this is not the final version:
It's already looking like a contender for the best model of the ship to date to me (with the exception of QMx's artisan replica at least). StarTrek.com also promise the magazine will provide the usual coverage of the ship, including concept art and computer renderings showing how the ship was reimagined.
The Collection's Facebook page also recently posted an image of the forthcoming Borg Sphere issue. It's the same image as previously released, but at higher res, so you can take in all the detail they've packed into this model:
For a listing of all the ships in the Starships Collection, including links to all my previous previews and reviews, see my index page.