I think that demo is also a case of "If we only had to develop for PCs we could make some pretty amazing shit, but we don't want you to know that since our games also have to run on gimped console hardware."
I still play UT3, and hope they make UT4 when they release the Unreal Engine 4.
But yeah, that article title is clickbait. It tells you absolutely nothing.
And lastly, why is Cliffy B playing coy even though he left Epic and has millions of $?