With Deadwater I mean a whole year of nothing happening - no new content or updates to the game besides a movement in the PvP Seasons and few bug fixes and tweaks.
Wrath of the Lich King and Cataclysm had tremendous waiting times before the next expansion. I thorougly found this time insanely boring because all content got old so fast (especially Dragon Soul). Since my 12-13 hour work schedule doesn't allow me to be part of planned raiding within my guild (or most guilds for that matter), I settle with LFR, LFG and Random Battlegrounds. Content I all in all find enjoyable.
I like how new content is within the scope in Mists of Pandaria and I found the Landfall patch quite enjoyable (haven't even finished it yet) despite not having a raid. This is good.
A year of Icecrown Citadel and Dragon Soul is bad however.
I don't know how you guys feel about this, but I felt it was nescessary to say.