bitstream to netlist

That's the thing, there are no tools for viewing the bitstream. (I've had numerous occasions where a user has a bitstream in the field working for years, and then realize they have to make a change, but they've lost the original design files, or don't know which is which. They want to re-create the design from the bitstream, but there is no way to do it.

On that note, it's good practice to store the entire project that builds an image that gets released, just in case.