Multi-User Editing Outside of LAN

Hi,

i am wanting to learn, along with a friend how to create environments and wanted to give it a go together at the same time. I have been looking into Multi-user editing and have found that its main restriction seems to me that you have to be on the same connection for each other to appear and there doesnt seem to be any WAN connectivity options,

My first question is: are there any work arounds which could allow us to achieve him connecting to my session at the moment.

And my second question is: are there currently any plans which we know of which will allow some sort of self hosted server for people to connect to, i guess a kind of server browser (without showing everyones IP’s of course)

Thank you in advance,
Toby