Please find a way for upgrading simple Windows 2012 x Servers to Windows Server 2016 +

"simple" means Server with (imho) simple rolls such as
- file and print Servers
- hyper-v Server
- RDS

I understand that complex server scenarios with applications can't not simple upgraded.
However, there are many simple servers, where you could save lots of time with an upgrade.

this is only available as a mini-download, with a subsequent download.
the deployment tools should be available as a smaller easier msi to handle.

I would like to be able to select all updates I want and push them out at different times. Then have WSUS scan the systems again and push remainder of updates out until my servers are fully patched. I would also like to be able to fire updates out based on adhoc server right off the bat and watch progress.

Add an option to check what hotfixes (in addition to normal updates) are available for server roles that are running. Something like now manually checking against HyperV and clustering available HotFix list.

Currently WDS is not supported in server core, this can be a hinderance as it prevents full reduction of attack surface and reboots.
In addition, great PowerShell support would be fantastic

WSUS GUI needs to get the ability to manage updates from 3rd parties (add, remove, delete, statistics).