We were expecting/hoping the same socket because Intel is still stuck on the 14nm node, forcing them to use basically the same cpu since Skylake with minor tweaks. This results in cpus that don´r require new sockets because they are very similar. If Intel was already on the next node, then a new socket would be "normal". In the end Intel is the one who loses with this move because some who were thinking about upgrading to a six core aren´t going to do it because they need a new board and the ones who are looking to upgrade their new system from scratch are going to think twice about going to Intel and maybe switch to AMD. Personally i would welcome Coffe Lake support for my system so i could have an possible upgrade path in the future, this way i´m just gonna keep my 7600K for a long time.