The meeting dates are 13-17 April 2015 in the UK as they consider the future of GAFCON. A previous post about the meeting is here. An earlier letter from Archbishop Eliud Wabukala about the meeting included this section about the gathering:
The GAFCON Primates Council will soon meet in London, from the 13th to the 17th April, and we shall take counsel together so that our movement can grow strongly and be equipped to fulfil the vision of restoring the Anglican Communion’s commitment to biblical truth. It will also give us a special opportunity to meet with leaders of the British and Irish branch of the Fellowship of Confessing Anglicans and the Anglican Mission in England. Please uphold us in prayer during this time.