There’s no further update and work being done on the projects those articles discuss. The blog article from Dr. Konstantinos Dimopoulos was a theoretical exercise, rather than a live project. Dr Dimopoulos contributed the blog as an imagining of how SpatialOS might impact his particular field of interest - urban simulation and city-building games.
The autonomous fleet blog was something we worked alongside with a company called called Immense Simulations and Cubic Transportation Systems Ltd as a research project called TALON (Tools for Autonomous Logistics and maNagement). That project concluded and wrapped up successfully in August, 2018.
If you’re interested in large-scale autonomous vehicle deployment modelling, it might be worth you checking out immense.ai as a place to start?
Hope that helps,