I received this at my site from the same source late last night, even though he assured me I was the only one he sent it to... in terms of an indication of his reliabilty, you can make of that what you will...
Anyway, I asked him to provide some proof of who he was and his connection to the film etc.
He said he had no direct connection, but knew someone who knew someone who works at a production company that has handles location work. So, a bit vague, but the company he named does exist and has worked on previous Scott films. This could indicate a location standing in for an African archeological dig.
In the end I decided against positng it, because, as stated, it uses a lot of what is already 'known' about the plot, and a few minor points aside, there's nothing really 'new'.
Is it genuine? Who knows...
Personally, I quite like it - there is certainly something of a grand scale about it. It has enough of the 'Alien DNA' to be familiar, while expanding the world to make something potentially epic. If this is IS the real deal, then I'm looking forward to seeing it.
I guess we'll find out when the official plot synopsis is released..