Reuters with a sources story
Apparently sources have said that a 12 month extension was discussed by the governing council before they settled on 9 months.
They says that most of the ECB's staff's preparations were around a 6m extension at €80bn but Draghi gave some ground when he didn't have a consensus on that.
It's all a bit after the event but importantly it shows that Draghi is perhaps starting to soften on how dovish he wants to be.