The poster apparently thinks that rumors posted here are due to some magical link into Canon.
There is no such thing. The rumors are based on input from e-mails, and receive a CR rating based on their reliability, CR1 being the lowest reliability, while CR3 means a sure thing.
Its all for what -if and fun, and if you have to take it seriously, a rumor site will definitely leave you unhappy.
Canon is extremely protective about letting information out, and lenses are the hardest to predict. Usually, the CR3 rumors happen because someone somewhere makes a accidental slip and posts embargoed information.