Wii online is being switched off after less than 8 years, with a 100m install base. WiiU is not gonna last 10 years. Its online will be switched off, won't be receiving new games and will be discontinued before Nov 2022.
@ Mummel - All it takes to last a decade is to still be in production, still have a active userbase and still have games releasing. Xbox 360 is 17 months away from 10 years. It'll still have all 3 by then.