I imagine they will show confidential emails to other gmail users inline, but make a link for non gmail users. It is in Google's interest to make GMail less an

I imagine they will show confidential emails to other gmail users inline, but make a link for non gmail users. It is in Google's interest to make GMail less and less the same as "plain mail", until you are forced (for practical reasons) to create a Gmail account to interact with other Gmail users. Together with Amp and Chrome, eventually we will be at a point where the decentralized internet is replaced by Google's servers and software.