Apparently he said it can go on as long as the fangirls keep selling their souls- er, giving their support.
The veteran CW series appears poised to return for Season 10 — and possibly beyond, network president Mark Pedowitz told reporters Wednesday at the Television Critics Association winter press tour.
“As a fan of the show, who’s seen every episode, as long as I’m here and those [ratings]still hold, God bless them,” said Pedowitz. “They can go as long as they want.”
Source: Supernatural Fans Online