As an instructor of many of the cloud technoligies, I firmly believe that most companies will not move fully to the cloud, but will instead move to a Hybrid Cloud model.
I was lucky enough to visit VMware VMworld 2017 and watch and participate in talks on hybrid cloud.
For a nice introduction to building your Hybrid Cloud, I think the following light board is worth a look:
How to build a hybrid cloud based on VMware Cloud Foundation and vRealize Suite.
Enjoy.