I'am waiting hopefully, too with my ubuntu 18 and
for any updates.
for some time ago i bought also the lets encrypt i-mscp plugin, which for long time until now doesen't work, too. It would be nice, when i can update my server and i-mscp for avoid security attacks or something like that...
I think the community would spend some money to support a new i-mscp update, if there would exist a money pool, croudfounding or something else.