At some point I will. It will depend on when Chronicle City is getting ready to do their next print run for Novus. Those will be the breakpoints for updating the files since I don't want to change files that they just spent thousands on getting printed.
Now, when I do update them, unless I am doing a major revision of the system, I will most likely update the files online and simply allow those who purchased the PDFs to get them again for free at that time.
However, I do still need to update the online html version to incorporate the errata (and actually update the files themselves -- as I do keep them updated and ready to make new PDFs to avoid having to do it all at once).