and are you coming to this forum, lurking with gearheads, full of G.A.S., asking for help????
sure, I will light your pile, and will doze with gasoline first 
So, why don't you like/use the 85mm f1.2L? if the zoom it's making it obsolete, replacing one with another is not going to help much - and yes, I know first hand, the Otus is a whole new league.
IMO, you are missing a full frame camera - sell the 85 and get a 6D or well maintained 5D2 first.
the 70-20omk2 is for sure a keeper, but all depends of what kind of photography you like to do.
Nothing wrong in getting high quality glass, and better yet MF type, if that fits your style and needs.
By all means, the Otus is wonderful - but you will be a bit off with the amazing DOF in a crop body, aside a bit longer (around 130mm)
The 100 f/2 is a great lens, but I would go after a WA zoom instead, or a nice WA, like the zeiss 21 for instance.
Hard to say much without knowing your interests (photographic speaking), other than they are all wonderful lenses you have in line up, IF unlike the 85L, you put them to use (after all real paper weights are far less expensive)
I started with one, and am up to six now - hard time letting go one that really should go too, because it will always be a great piece of glass.
Take a small break and think twice - the only 50mm I like is the 50mp, but you are looking at the 100 already as half size macro, so I don't care to recommend any other 50mm (unless you go a bit longer with the Otus 55mm 
)
So, yes for the 100,, sell the 85, quit on the 50.... and
edit: your turn 

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