News.com.au interviewed Julian Morris a World of Warcraft developer who formerly was a chef in Australia, but his passion for Blizzard Entertainment games and the map editors led him to join Blizzard. Morris shapes the landscapes of Azeroth and Outland such as mountains, lakes, forests, rivers, roads, and more.
During the interview Morris slipped patch 2.4 would be live in the next couple of months. Depending when this interview actually took place that means Sunwell Isle could be accessible nearing May.
IGN.au also interviewed Julian Morris with more juice about patch 2.4.