I am not sure there will be a introduction of greater amounts of germanium into current devices.
A believe germanium has been used as a dopant to induce strain in silicon and there are SiGe processes at what are now trailing edge geometries. But strained silicon CMOS is the workhorse process.
But I believe this research is really looking towards a new era and finer gometries where the transistors are in Ge with Sn used to generate strain and silicon is the substrate to allow backwards compatibiity and integration with CMOS and manufacture on economicaly dimensioned wafers.
Does research is tending us towards a Fast (Low transit time) and more dense electronic ICs? As the article is discussing about it I think this will also help improving the bandwidth of the current semiconductor based devices.
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. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.