MarleyHate to be that guy but I cant help but feel like they are way over reaching what they will actually be capable of. They are saying they will have hyper realistic cars, guns 270 square km map and an entire functioning economy that are completely reliant on players(and I dont see any mention of other games or products these guys have worked on. Which is a pretty big red flag imo) but if a few bits of concept art and some tiny mock up levels of a house and and a shop are all you need to have people throw money at you i don't see why you wouldn't do it.
EDIT: did some research and it looks like the main guy only experience was working as a programer on the MMO "Mortal Online" which I have never even heard of before so hardly filling me with confidence about the game
Mortal Online was an MMO in the same vein as Darkfall, Ultima Online or Shadowbane, if you've ever heard of those. It featured an open world with a large map that was seamless, meaning no instances or loading screens when going into any part of the world. They were mainly known for being decent attempts at sandbox fantasy MMOs, with player housing and customization, player built cities, and player driven economies a la EVE.
Mortal never really became a big hit but it did have big dreams and pulled off some pretty big things. There are no AAA developers that have tried to pull of things like Mortal and Darkfall, so you're not going to find many people with that kind of experience to put on your team if you're trying to pull off something similar.