Hi! There is no exact date of when "Tsunade NPC" (the feature) will be released, but it will be released this month =] The team will update you guys when it does become available.

If you want to provide suggestions then you and everyone that spams the General Discussion with requests should do it in the correct section which is in Bugs and Support and make sure you label the post under Suggestions. Jiburiru and Qv will always redirect there for you to make the request and ask you to look out for the event updates when such updates.