I understand that in the very near future Unstoppable Cards will be opening an archive showing all the cards that have ever been released by them.

This will be a fantastic addition for the hobby and a great checklist for collectors.

I agree.
I'm looking forward to seeing it, and it's something all active manufacturers should do, really.

Yeah, a company should maintain an archive of everything made but maybe only a company founded or run by an artist (or someone who's into some kind of art) would think of that. For most companies, their products are just things that research concluded should sell.

I hope that it includes images of all of the obscure and ultra limited promo cards which exist. Like the ones limited to 5 or even 1 copy, or the ones made for private collectors.

Just saw on ebay an unreleased Highlander promo from 2023 which I never heard of