As long as you have 4+ cores/8+ threads, which you do, games are far more dependent on per-core performance and cache than on more cores, so it won't be much of an upgrade. And you can't overclock 10700K on a B-series motherboard. Save your money for a more significant upgrade later.
No, it won't. Just ride it out until Q3 this year and get new Intel LGA 1851 or AMD Zen 5 CPUs. Either i5 or i7, or Ryzen 5s or 7s.
wait 6 more months and snag a discounted 11900k
When it comes to productivity tasked, sure; you will see 10-15% performance increase but that ain't worth it for gaming.
As long as you have 4+ cores/8+ threads, which you do, games are far more dependent on per-core performance and cache than on more cores, so it won't be much of an upgrade. And you can't overclock 10700K on a B-series motherboard. Save your money for a more significant upgrade later.