Possible Book 7 Titles?

Take this with a grain of salt. The Sun (the British tabloid) says it has discovered two titles "secretly registered as trademarks at the Patent Office" two years ago when Half-Blood Prince was registered. The titles? Harry Potter and the Parseltongue Trophy and Harry Potter and the Great Revelation. The Sun also quotes a source from the Patent Office, saying "Future titles are registered as trademarks to stop anyone from cashing in on the Potter brand." Thanks to CanMag for the tip.

This is all highly unlikely, as the information came from neither 'Harry Potter' publishers nor from J.K. Rowling.