they did a presentation in china showing the 2.4 for october, stop with the 2.4 will come out in november, actually the best course for them is the 21th, like this people that will come to the fanfest of london will focus mostly on the expansion and they have time between the two fanfest (las vegas and london) for the 28, they have the fanfest of london that start the 25 and finish the 26, the 27 they are at a live event in japan, that leave them with an extremely heavy planning if it the 28, the 21 seems more calm.