The lads on Skyscraper City (an architectural type forum) think its completely made up and the Youtuber concerned (Greybeard Media) is doing it for clicks. He doesn't seem that type based on his videos, but the internet is a mad place so who knows.
I think the station part could have something in it, but it'd depend on 120m+ of investment from somewhere and Rotherham's track record isn't exactly stellar.
On the same forum but in a different thread there was one poster saying the club has been buying up houses on Skerries, but a more credible poster who says he owns one says he's heard nothing at all.
The majority view is that the new houses thing is total nonsense, they've been trying to attract developers for the Vernon Sangster site for years but no-one is interested. Maybe if the station gets done it becomes more likely.
I think it all depends on transport, so that station at Utting Avenue is the key. If something happens there, we might hear something about the SKD or the Kop.