The updatepack isn't meant for fixing stuff. Neither is it dependent on WU. If it happens to fix it, it's probably because some file was bad and got re-applied buy an update - that sort of thing.
Installing KB958830 (Remote Server Administration Tools) prior to running the pack causes the update pack to get stuck in an infinite loop trying to reinstall KB3125574-v4 (2016 update rollup). The pack does not complete successfully until it is uninstalled, even though the system correctly registers the status of the 2016 update rollup as installed. Is this a bug, or an intended behavior? No errors appear in the update pack log, the installation always succeeds every time it is attempted but loops again trying to reinstall it anyway. EDIT: Seems like AD LDS and related updates also cause the same issue.
windows6.1-kb5044321-x64_7844dd833100025740c4a93838e9ed288d267c0d.msu is in MS update catalogue available....
For 32bit, yes. Could imagine that 32bit files will be removed in the future, making the coming packs slimmer.
October's Update is now available: MD5 64E6A5A7E1FB70606A7B39D27D6AC624 SHA-256 E57E460DD26DC618584D4297154B5AC6A0ED2ECCE4D5BB3093BF4E5145736377
Considering nobody here has any knowledge about what @simplix is planning to do, we can only wait for him to respond.
At this point, most likely not for some months now. Most likely yes until January. Server 2008 updates apply to windows 7 client versions as well, as far as I know.