A recent article on theverge.com showed that Mists of Pandaria almost wasn't the next expansion.
Small portion of the article:
""We actually had pitched an entirely different expansion to the team," Lagrave told Polygon during this year's Gamescom conference in Cologne, Germany.
"We got them all to say this idea was cool and this was interesting, just when we decided not to do it.""
""Pandaria resonated with us, and that had a gripping appeal so when we were like 'well we could explore this' and we could feel that vibe roll through the team saying 'I like this a lot.' We love that sense of adventure.""
NOTE: Please, no arguing over what should have been next. Keep it clean and only about the article itself.
What interests me most about this is what could it have been? Maybe it is the Legion and it being set up in MoP. What are your thoughts?