My MkII won't be discontinued for the foreseeable future, thanks in part to my 7D
I love the way the MkII and 7D complement each other. In my eye, a choice can be made between either the both of these camera's vs 'only' the 5D mkIII that combines their functionality. I strongly prefer to have two bodies however with different capabilities - always the right tool for the job and the possibility to carry both bodies with different lenses for different focal lengths to save swapping out lenses.
5D3, 5D2, Sony α6000 | SY14 f/2.8, Ʃ20 f/1.8, 24 f/2.8, 35 f/2, Ʃ35 f/1.4A, 50 f/1.8 I, Ʃ50 f/1.4 EX, 100L Macro, 17-40L, 24-105L, 70-200 f/2.8L IS II, 1.4x II, 70-300L, 100-400L | E-mount: SY12 f/2, Ʃ19 & 30 f/2.8 EX DN, 16-70 ZA OSS, 55-210 OSS, Metabones SB | FT-QL, AE-1P | FD(n) & FL lenses.