I don't know how legitimate that twitter account is, but they are making some really big claims on there. One including Yarmalenko, Rooney & Begovic to join with no sales out.
What you say is correct though. Lets not underestimate the guy in question. He has personal wealth of between 1.3-2 billion. Not a poor man by any stretch. We have now become very appealing to further investors though. Once we sort the ground situation out we will be primed for a big sale.
We are in a footballing hotbed of an area. 1 Of only 4 teams. None of the other 3 will be saleable. By the sounds of it, this fella won't mind working alongside others. I wouldn't be surprised if he'd happily dilute shares again after the ground move in exchange for further investment, as it will continue to grow.
Compare that to say United, who would cost a fortune and in all honesty are in a bit of a mess. Exciting times.