If they launch a new 13 boss raid every seven weeks they will run out of content so fast and we'll be right back to the MoP/WoD situation of a year long wait between expansions.
How about you have a bit of patience, recognise that the game is stronger for having story content leading up to a raid that was never supposed to release with this patch and chill the fuck out? Chances are high they aren't even done with ToS yet.