"I was just in a meeting with Microsoft and they’re definitely working on the next version of WPF. Obviously, I can’t disclose specifics, but the fact is they are gathering feedback and actively working on WPF."

He doesn't say it was a meeting with actual developers. Just because a sales/management guy says they are working on it doesn't make it true.

Microsoft has a history of this. MFC, Winforms, WPF, and now WinRT