I think the lack of uptake is because ESLs have chosen to use old/crusty style languages, rather than moving to a higher level. Why not implement an ESL in something like Ruby or Python? Using C++ to generate high-level models is not my idea of a time saver, nor is it very "fun". SystemC is only marginally better.
Additionally, I think that the IP developers are "getting it". Dillon Engineering has a rather interesting Python-based flow (http://www.dilloneng.com/ingenuity/paracore/flow) that would be nicely completed with a Python-based ESL.
Just my thoughts.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.