That's a good question. I don't see it as necessary for it to be taken down—it still adds to the value proposition for Arcade even if it's available as a once-off purchase.
Yes, we can. I already purchased it around two years ago.
My question was whether it will remain available for purchase after it arrives on Apple Arcade. The answers from others indicate that it will be available as a separate purchase as well.
The Apple Arcade version is a seperate app meanwhile the paid version will remain available, it seems like the only difference is that diagnostics data isn’t collected in the Apple Arcade version