S.Peelman on 04 June 2015
They didn't delay development of Zelda U just so they can make something else instead though. At least not according to Aonuma, going by what he said one would assume they're working on Zelda U full-time right now.
Still, Nintendo is unpredictable however so you never know what they'll have, but personally I'm not expecting anything. Guess we'll know in a few weeks, can't wait!
I am intrigued by that 'RTS-Zelda' spin-off idea though 
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