The LGA-1851 socket details are showing up online and while there is almost no physical difference, the pinout changes!
LGA 1200 - Wikipedia
Intel LGA 1851 Socket For Next-Gen Arrow Lake CPUs Unveiled in 3D Renderings
EKWB announces a Pro Line CPU block in LGA-1700! - Overclocking.com
Intel 11th Gen Rocket Lake Desktop CPUs For LGA 1200 Pictured
How to use old (or new) CPU coolers on LGA 1700 - NZXT, Corsair and Noctua
Dropped DDR4 support and a longer than normal lifespan? LGA-1851 will push Intel forward - OC3D
Intel: a new socket after the Raptor Lake - Overclocking.com
Intel's next LGA1851 Socket Revealed? - OC3D
Intel LGA 1851 Socket for 14th Gen and 15th Gen Core Processors Leaked
ARCTIC Liquid Freezer III 420 - Water Cooling PC, All-in-One CPU AIO Water Cooler, Intel & AMD Compatible, efficient PWM-Controlled Pump, Fan: 200-1700 RPM, LGA1851 and LGA1700 Contact Frame - Black