Good News: Heat does surprising well, about the same as 9th Gen so that's significant considering the clock/thread boosts. i5, i7, and i9 all have Hyperthreading, can manually disable Hyperthreading on any individual Core. New Motherboard promises significant upgrades for future Gens, but that leads us to....
Bad News: Need a new motherboard , still doesn't beat AMD on heavy multi-threaded apps (but how many people need all that crap anyway?). Probably not worth upgrading if you're already sporting a solid 9th Gen chip, save your money, especially if all you do is game and browse. Still uses 14nm process, which, in a nutshell, basically means you better have an extremely high watt power supply if you plan on doing massive overclocking.
Will wait for 11th Gen before I upgrade, should be some real solid improvements by that time. It's unlikely AMD will produce something that can top Intel's gaming dominance.