MQTT support would be very great.
you would have all readings centrally under FHEM in view and could switch further events with status "finisch". e.g. switch off a Sonow POW (tasmato) and thus switch off the printer.
MQTT is on list for future interface options. But first other more important features will come.
What is the current status of MQTT support?
Won't start this year due to lower priority over other functions.