A successful migration to Intune starts with a solid plan that factors in the current MDM environment, business goals and technical requirements. Additionally, you need to have the key stakeholders whose will support and collaborate with your migration plan.
It's important to recognize that your new Intune deployment might be different from your old MDM deployment. Unlike traditional MDM services, Intune centers on identity-driven access control, and so does not require a network proxy appliance to control access to corporate data from mobile devices outside the organization's network perimeter. Microsoft offers solutions to secure data services within the cloud itself via a suite of tightly integrated cloud services, collectively referred to as the Enterprise Client + Security offering.
Read more about it here, and let us know what you think.