This is Sing Li from Rocket.Chat -- and thank you @robi for notifying us
There is definitely some misinformation floating around.
First, basic LDAP, SAML, most Oauth and Custom Oauth features will remain available on Community Edition and non-Gold plans. The details of which you can see in this chart - please scroll down to see the details.
Second, we are in the community input / feedback gathering phase for the upcoming changes.
Every Rocket.Chat community member, including all of you, are invited to the open call to community where you can discuss the matterr directly with our leadership.
Thank you for your attention and hope to see you this Friday!