From a realistic standpoint. When do you expect Cataclysm?

[Zub]

This isnt really any different than the last parts of BC though.

We got BT, then ZA, then SWP and SWP lasted from when it was released till the expansion.

Kara > ssc/tk > bt/hyjal > ZA > swp total = 7

Naxx/sarth/maly > ulduar > toc > ony (5 year anniversary) > icc > ruby sanctumm total = 8

Realistically the hardmodes of instances count as another encounter so you can pretty much put them as seperate raids because of all the new mechanics.

So we got much more content in this 2 years opposed to BC.

In BC we also had Gruull and Mag, as well as a couple of outdoor bosses though.

[Shodokan]

In BC we also had Gruull and Mag, as well as a couple of outdoor bosses though.

forgot about the other t4 bosses, my bad.

the outdoor bosses like kazzak and doomwalker don't really count imo though.