Spyderco already announced MagnaCut in their 2022 catalog. However, they are backed up at the moment. I am not holding my breath for a release in the near future. Custom makers tend to be on the cutting edge (no pun intended) when it comes to using "odd" steels. I expect more and more people to use it. That said, will Crucible make enough for demand? There's not a ton of money in knife steel production. Right now, Crucible's latest cutlery steel is S45Vn. S35Vn and S30V are still widely used as well. 20CV has taken off a bit too. I don't think Crucible will start making large batches just yet. But, I could be wrong.

This knife enthusiast[0] implies that this steel isn't necessary in the kitchen

Though I had the same question, I'm guessing it'll be a few years and it'll be very expensive.

[0]https://news.ycombinator.com/item?id=29697285