I wasn't pointing you to a calendar. You asked "when will we see some DevCon?" and I assumed you were asking when the next DevCon would be. I pointed you to a page which showed when and where that would be.
As for any update to the schedule for BB10 devices, I wasn't at DevCon Europe so can't say for sure. I haven't heard any reports from there indicating that any update was given but that's not conclusive.