https://www.newworld.com/en-us/news/...ld-information
All those streamers are apparently getting 100 keys each or something.. They had a mess up in deciding the winner so they just made everyone winners. So if you want a free one, find the lowest viewed steamer and on release they should get the keys and give them to their communities.
Also, it may sound a bit obvious but watching this game and playing it was a very different experience. I distinctly remember how surprised I was by the feel of the combat after I bought it, wasn't expecting too much after watching.. Looked like just more GW2 combat, but it turned out really smooth and felt more like a Dark Souls single player than a MMORPG combat wise.