Very unlikely that it would be built completely from the ground up. They could go back to first principles for the design, but the major building blocks would be based on previous processors.
> Intel Lunar Lake to Feature Brand New CPU Architecture Built from the Ground-Up
Itanium v2.0 ?
They've tried this a couple times now and failed. Current generation Intel CPUs are essentically riced up Pentium Pros.
No, they are Meroms/Core architecture. Old, but not PPro old lol.