I don't like advertising for a monopoly run by a billionaire, even if it's a (mostly) "benign" monopoly, but Squeenix is gonna pull FF7 from stores, including The Big One™, and it will be replaced by an updated version with improved gameplay features.

If you have the old one, which is currently on sale at The Big One™, you will automatically get access to the updated version but imo the important thing is that the old version will be compatible with a ton of old mods that are unlikely to be compatible with the updated version because the updated one isn't backwards compatible with old saves - if it can't work with old saves then there's little chance it won't break the old mods.

If you've been thinking about it, if you love the original version, if you're not that comfortable with piracy, if you want to secure access to decades worth of modding of the game then now's the time. It will be a 2-for-1 purchase (kinda) and I guarantee you they're gonna jack up the price of the new release because that's exactly what they do.