are there plans to have seperate skill point pools? Like, you can get so many skill points to be allocated to combat skills, some for crafting, some for harvesting?

Yes. This is already implemented. There is a soft cap for each skill group.

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Separate pools = bad (in my opinion)

I think all skills should fall under the same soft cap, so you're either highly skilled in combat, highly skilled in crafting, or a jack-of-all-trades.