" any sort of cessation of Wii U software development"
I never stated that neither. They need continue supporting the console until the next one but I would make 3/4 titles per year and continue to make DLC for existing titles like SM3DL, Smash, Splatoon, Kart, basicailly anything that's still alive.
Nintendo's hasn't had a strong "console" finish since the N64 (which was largely due to Rare)--they need to change that because people have started to notice it's an trend with Nintendo's home systems.
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Also, since third parties have dropped support, maybe Nintendo should/try to get publishers to allow Nintendo themselves to "port" over 3rd party titles. Sure you might not bank any money doing that but it would help software drought/diversity. I wouldn't bother with small fry titles, but aim at the notable ones like COD BOIII, ect. Cheaper to port a game than create a new title.