It's possible you'll get more responses if you move this question into one of the groups as I think the right people just aren't seeing it here in your discussion.
I feel your pain ... Having an input connector for MQ would be very useful for my company also. Currently we have our enterprise service bus post a json message to the geovent processor.
Both IBM MQ and ArcGIS support the same API’s, scripting languages, and message protocols (such as MQTT). Here’s a specific reference for a GeoEvent Server connector for MQTT…
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