If, and it is far from certain, the rumours are true the P core only "Bartlett" parts are a completely different beast to existing RL architecture using tweaked Redwood tiles with additional cache and a different bus design.
As before would seem an odd move to me for Intel to overshadow their newer platform with a faster gaming CPU on the older one but the rumours still are new LGA1700 CPUs are coming.
Yeah I think hell will freeze over before Intel go backwards and release a new, faster CPU with new layout/architecture on an old dead platform. Some rumours as just dumb.