If anyone wants to upload their newest patch+HoS The Witcher 3 Wild Hunt\content blob0.bundle, metadata.store and texture.cache, they would be a pretty swell guy. 10 KB, 1 KB and 4145 KB, respectively.
Trying to find these for you. Found the texture.cache (4.12KB) in the patch1 folder. And found the metadata.store but that is 31MB, however there's another called metadata.store.stamp that is 1KB.
I can't find the blob0.bundle, though I have a blob.bundle in a folder called 'content0' (and separate blob.bundles in 'content' folders 0-12), but that is almost 300MB.
When doing a search for these files they only show in my mod folder, but you said it asked if you wanted to replace files when you put them in the Witcher folder?
edit: wonder if the texture.cache would be enough.