Title for Book 7?

Here is an article that talks about two titles that were trademarked at the same time as Harry Potter and the Half Blood Prince:

We have discovered the seventh book in the series penned by JK Rowling is likely to be entitled Harry Potter and the Parseltongue Trophy or Harry Potter and the Great Revelation.

Those two titles have been secretly registered as trademarks at the Patent Office. They were registered two years ago on the same day as Harry Potter and the Half-Blood Prince.