My primary daily responsibility is ESB - a integration via web services, that is. Interesting enough, I do not see WSs as a source or a target in your integrations. Your customers do not have a demand for that?
I've seen a demo by CA recently where they roll out a product that connects to an arbitrary database and without coding allows to expose its content as WS (SOAP or REST). Kind of CRUD over WS. They felt very optimistic about it.