As we said some months ago, AM4 CPUs will have a soldered IHS, in order to guarantee a better power dissipation and better overclocking capabilities.
AMD, in contrast to Intel and its mid-range CPUs strategy (e.g. Skylake-S Socket 1151), will try to tempt Enthusiast users thanks to high quality and fast SKUs, sold at competitive prices. Welcome back, Athlon XP times.
Bristol Ridge in photo, about 250 mm2. Zen will be about 200 mm2.