Will buy and hold investments in gold or gold mining stocks pay off from the coming gold reset, in spite of any downturn in gold price before then?

There will be gains no matter when gold is purchased because the value will be at an appreciable new high level. Those who do buy at lower prices will gain more, but no one will lose unless they sell along the way, or if the gold reset does not happen for some reason. But we see the latter as being extremely unlikely, given it is an integral part of the planning of the interlopers as a strategy to devalue all the fiat currencies in one fell swoop, and they very much want to see everyone impoverished as a major goal in the lead-up to the coming alien Disclosure event.