If only one part of a project team is using BIM360 internally, it is a difficult task to update the external revit models weekly.
This link explain 3 methods:
https://knowledge.autodesk.com/support/bim-360/learn-explore/caas/sfdcarticles/sfdcarticles/Linked-m...
None of the 3 methods is working smoothly, There do we not get the result as we want, or method is very time consuming.
So make it easier to replace/update non-cloud linked revit models so they er fully functional as a cloud revit model.