This seems interesting...I would be surprised (and amazed) if this team were able to make a re-imagined Vice City that was HD, has fully-functional traffic and A.I, had a whole different layout, a story with new missions, and didn't turn out to be a "pseudo-city"--like, when a map mod simply takes existing elements from the game's original map (be it buildings, roads etc.) and just re-arranges them, without replacing the models, or even their textures.
the reason why "city mods" fail--nobody wants to see a "city" with the same buildings they've seen a BILLION times with roads that appear to be laid out in a grid-like style, but it's creator says "Well, here's Whatever City, it's my own new city". Making mods this big takes years; don't be surprised or amazed if a city mod has just been made within 10 minutes...
But, this mod looks promising, like the detail so far, and good luck to you guys with your progress...let's hope this doesn't die like the VCHD one did.