Honestly, magic 8-ball style, "Ask again later." It's hard to say with specificity what the the best hardware configuration to run Ae over the next few years will be. The Ae team is in the middle of a huge re-architecture project, and until that is further along, it's difficult to say for sure how to balance core count against clock speed.
If I had to buy today, I would aim for something middle-of-the-road: not too few cores, but not too slow per-core.
I suspect that everything I wrote in the old thread you just commented on still applies. Balance in a workstation matters, so the more you spend in any one area, the more you need to spend in all others to make it worthwhile.
No matter what, for Ae, you will certainly want lots of RAM. More RAM lets you more effectively use the old multiprocessing feature on CC 2014 and prior, and will let Ae keep more cached in RAM if a smarter multiprocessing feature makes its way back.