X470 tends to be better for extreme overclocking and might have a few extra connection options, but for the most par tit's not too big of a deal. I went with a Gigabyte X470 board because it was fairly cheap here in NZ and have no complaints. I also went with a 2700X and have yet to see it exceed about 30-35% usage while gaming because the games I'm currently playing just don't use that many threads.
Will it be more future proof? maybe, it's honestly not easy to know. When quad cores first appeared and started to be used in gaming rigs many people carried on with dual core CPUs for many years without issue and enjoyed all the same games for less money. By the time quad core really started to be needed those first gen quad cores were out of date. The same could happen with 6 and 8 cores, they may end up being outdated by the time a decent numbe rof games actually need that many threads.
For right now 6 core CPUS game just as well as 8 core ones and even 4 core CPUs often keep up. Having spare cores lets you multi task while gaming a bit more but may not benefit you at all in gaming for the life of a new PC, who knows.
Any desktop i5, i7, Ryzen 5, Ryzen 7 will game very well and should do so for several years. None of them will be the bottleneck with a GTX 1060 based system.
I do love 8 cores though, I just converted an album to MP3 from FLAC for my phone and saw DBpoweramp to all 12 tracks at once, 1 thread each with 4 left over
, took about 10 seconds.