CG writes: It appears that since 2011 when Mortal Kombat 9 released NetherRealm Studios made a conscious decision to tone town the female character Mortal Kombat outfits. NetherRealm replaced the trashy yet comical looks with realistic options in Mortal Kombat 10 in 2015. Fast forward to today though and with the release of Mortal Kombat 11 its clear the design choices present a distinct covering up of the female characters. Yet, the male characters continue to exhibit the same muscle bound looks from 2011. The video makes a comparison of the Mortal Kombat outfits for the males and females and the subsequent potential for objectification.
Source: N4G PC Mortal Kombat Outfits & Objectification Male vs Female