Microsoft have released a new site for posting and voting on ideas to the Dynamics 365. https://ideas.dynamics.com
It is assumed that this is replacing all other forum and sites, like connect, yammer etc for suggesting new and exiting functionality. It covers the entire Dynamics 365 stack, and the concept is that each person can suggest and vote on up to 50 suggestions per forum. Microsoft have also created statuses on each suggestion, and additional comments can be added by registered participants.
A small suggestion to Microsoft on the site; Allow us to use our ADFS login, and not just our Live-ID login. (I guess I have to create a suggestion for this)
Kurt Hatlevik - Dynamics 365 Blog 