Well better late then never I guess but still, following the progress of the 4.81 exploit (follow the developments at PSX Place), Sony released on November 14th 2017 firmware 4.82 - about a year after 4.81 was released. Extract taken from Sony Europe site:

Main features in system software update version 4.82:

- This system software update improves the quality of the system performance

As usual, nothing remarkable, adds absolutely no new features and no noticeable difference to system performance. Only thing it'll most likely do is possibly patch up the exploit but who knows? You'll have to check and see for yourself. For those with compatible consoles that want to wait it out for a possible downgrader, you'd best stay put.