MWS and maybe some of the instruments that are not working like electrical-hydro gauges, warhead selector, maybe Igla support, but dont expect nothing radical.
Of course is only my oppinion, but is going to be our beloved Ka-50 like it is right now but updated in the 3D exterior-interior and not much more.
Of course the MWS is a great addition.
Modelling a unique single mockup of the N variant or a single flying prototype for the Sh makes no sense for me.