I'm sure Node-RED have a brilliant future in Industrial IoT Applications.
As I already said a couple of times here in this forum, I'm suspect to talk about this topic because I work for ST-One, a company that uses Node-RED since it's first releases (more than 6 years ago). We even built a hardware with Node-RED embedded and this hardware is installed and running in almost 300 stations in over 15 different countries.
Of course we also contributed back to the community with some nodes like Siemens S7 , Ehternet/IP , OPC/DA , Micrologix PCCC , Atlas Copco Open Protocol , but most importantly we have also spread the Node-RED word in many many universities here in Brazil, to encourage students from many different areas to explore Node-RED and use it in their thesis and Universities Projects. Today we have a couple of hundreds of researches published every year that, at some point, have used Node-RED during the project.