I'm guessing the CEOs don't generally make announcements like this, unless a successor is already lined up. 12 months is probably just a guideline for transitioning to the new CEO.
Possible - but the official statement indicates that no decision has been made.
"The Board of Directors has appointed a special committee to direct the process. [...] The special committee is working with Heidrick & Struggles International Inc., a leading executive recruiting firm, and will consider both external and internal candidates."
