"This is where the Red Hat acquisition comes in: while IBM will certainly be happy to have the company’s cash-generating RHEL subscription business, the real prize is Openshift, a software suite for building and managing Kubernetes containers."
Small problem with that. Most of the progressive enterprises are trying to move AWAY from containers to fully serverless architectures (Lambda, Google functions, Azure, etc.)
Kubernetes is still hot but the momentum is definitely with Lambda and its ilk.
As a huge proponent of all things ESB related, I can confidently say that ESB is dead.
This is very unfortunate because I think we still need a way to do cross service mediation, process orchestration, etc.
That said, you will not see any new deployments utilizing an ESB. The fact that all open-source ESB projects are essentially abandon ware tells you all you need to know.