The show's sputtering so much that I'm not sure killing a worthless character would make much of a change. That being said, there's an interesting quote recently from Seth McFarlane about how he expected people to be sick of the show by now and is disappointed that there are so many that don't want it canceled. Maybe he just wants to kill off those who have any interest in it. Although, unless the future episode titles are misdirection, I suspect Brian will be back. That being said, I haven't watched the show in years and anything they do now won't diminish the show's quality when it actually had some quality, so I'm relatively indifferent to this whichever way they go.