I completely disagree. As Goro has claimed he will "finish" Kotal, it seems to be a one or the other situation, and as we know Kotal won't die, it has to be Goro.
Also, I remember reading that the Shokan uprising is lead by Kintaro. If Goro were alive, surely he'd be leading the Shokan uprising? Seems likely his death will spark this uprising.
And I don't think they didn't kill Frost because they don't have the balls, but I'm sure she'll be making a reappearance in the comic and possibly the game.