Unless the i7-11700K can be OC more.
I re-OC my i7-10700K few days ago to get 5GHz all cores. Huge change in MSFS.
Saying that, the price of the 13th Intel gens are pretty good and, AFAIK, for the same amount of $ for the i7-11700K you can buy an i7-13700k (~400$)
.
Knowing than compatible Z690 motherboards are not that expensive currently, and you can reuse your DDR4 RAM, could also be a good deal (Z790 board and DDR5 are too expensive).
Edit: i7-13700K: 8 Pcores + 8 Ecores, 24 threads, up to 5,4GHz and 3,4GHz, 30MB+24MB cache, power 253W (ouch)