At this stage there hasn`t been a lot from the Devs about this topic . I think it makes sense that you get the " just the 2 additional " points because you will be taking out the other cyber improvement and replacing with the new one . I also think it wont make any difference if you put cyber gear into meat or other cyber gear there will be the same prices to pay in humanity .
I like Mybrokenenglish`s ideas maybe more B than A but A would be very interesting to have in game .
Yeah, i suspect the humanity loss math mechanic won't get too technical, and if one yanks/replaces/upgrades an implant, they'll instantly get the humanity invested back and have the new humanity loss tally subtracted.
Doing anything more complicated than that will likely leave many confused.
That's a damn shame. I really wish we could do WHATEVER we wanted, even if that means turning ourselves into a psychotic killer.
Murder hobos are a little cliche', but, some folks need to live that life at least once to feel complete, I guess. Party on, party people.