The patch adding the feature has been added to a retail PS5.
If Bloodborne fans aren't getting an official remaster or sequel, you can be sure they'll go to extreme lengths to get the PS4-exclusive game some modern features. Recently, a pair of modders known as Lance McDonald and Illusion have been working to get 60fps Bloodborne on the PS5.
Now, they've finally done it, as the patch made by McDonald has been put onto a retail PS5 by Illusion. This doesn't mean that adding the mod to your PS5 will be a cakewalk, but it can be done.
If you are going to mod your PS5, though, it does come with some risks. Still, even if you never broach getting Bloodborne at 60fps on your console, it's a thing of beauty to behold.