....convergence of vendors, technologies, design processes, V&V, etc
This post at LightReading seems to point that, similarly to a decade ago, OT is converging to IT -- or, at least, classical Telecom vendors are now seeing the opportunity.
I cannot stress enough that ICS/OT is not IT, the same way Telecom is not IT or datacentres are not Telecom. They all have different requirements, different application of (the same) technologies, different vendors, different requirements (e.g., "CIA" versus "AIC"), different communications and cybersecurity architectures.
I am working on a table that highlights the differences from a Networking perspective.