There was another request for this, but it was a dual request and seemed to go down the route of local commands.
Mosh support is really needed.
We do have had a plan for Mosh support, but development of Mosh seems to has stalled.The last stable version was released over three years ago, and discussion in its mail-list also very less.
We may turn to investigate Eternal Terminal and tmux supports.
Kindly Regards,
Yang
Mosh is feature stable though, I don't ever have any issues with it so I'm not surprised there's been no updates, it would however be very useful.