As 5G is a larger horizon in terms of its use cases, and this would be segmented through network slicing approaches.
5G whole lot would not be given in a single shot, or doesn't seems to be feasible even, due to many reason, foremost is continuous spectrum and also the O&M.
Also to note that 5G would differ in use cases so carry different requirement at different geographies or nations. So despite of harmonization it has to cater the differences across nations and geographies. That makes it most vulnerable for convergence or accumulation of multiple technologies.
Indian aspiration on 5G is taking shape to start 5G on C band and freeing up 100MHz in 3.6 Ghz spectrum for its 5G test bed initiative.
Germany recently taken a bigger step by freeing up complete C-band for 5G, 3.4-3.8 Ghz band.