Server first doesn't mean Server only.Sapphire Rapid is server only, which wouldn't make sense because they'd do all platforms for a completely new design.
I think the focus for Ice/Tiger is EMIB and power draw at the lower end. There'll be changes of course but IPC improvements are going to take a back seat. Maybe they'll throw in a token 5% IPC improvement but Icelake should clock worse than Coffee at the top end. Mobile should get a nice base clock speed boost.Icelake is not a real CPU update? Are you saying it is another Skylake refresh update like Kabylake?