I want to know currently who has the rights over the WP.
Nobody. It's open source.
How a man can copyright something which was originally released under the open source MIT License?
He cannot.
We were puzzled too. It looks like in UK, no matter how wrong you are, if the other party doesn't show up for the trial, you may win. This is what I've understood from the matter.
And the whitepaper was "removed" only from bitcoin.org and only for Brits. it's still available in a lot of other places. And even on bitcoin.org, if you don't come from UK IP you can get the whitepaper.