https://www.izotope.com/en/learn/ozone- ... -soon.htmlBalance to your music with never-before seen processing for low end, real-time instrument separation, and lightning-fast workflows.
That quote doesn't make grammatical sense, but there we go.
The mastering process seems to be wanting to ever more encroach on the mixing process. I guess the real-time instrument separation comes from RX where you might have to tweak something commercial for a mixing purpose, but why on earth would you re-balance anything at a mastering stage? The re-balance tool is a modern miricle, but good lord I'd rather change the drums group in the mixer than on their inevitably lossy-artefacty algorithm any day. Processing for low end might be interesting though, depending on exactly what it is of course.