We are developing a multi-tenant application and would like to be listed on Azure and support Azure AD as an IdP for our customers. However, a few customers that already have ADFS 2.0 setup didn't like the idea of sync'ing all accounts and passwords to Azure AD. So, is there anyway that when Azure AD receives a login request, somehow, have it redirect to ADFS and let ADFS do all the magic and return a token back to Azure AD which then returns JWT (using OpenID Connect) to our application?
I know that ACS supports such scenario but we are worried that Microsoft would soon drop support for it.
Thanks!