Nintendo will be holding an investor conference on the 27th April at 4pm Tokyo Time to coincide with their FY15 earnings release. It is possible for them to talk about plans for FY16 including the rumoured release of the NX console as well as more mobile releases.
Twitter: / tim10do
Sources:
https://www.nintendo.co.jp/ir/en/
http://www.nintendo-insider.com/2016/...
http://kotaku.com/5795241/nintendo-co...