If you're doing a full migration my guess is that the permissions would be retained. You may not have applied ACTs but there will be ACEs, either explicit or inherited. If you want to confirm this, examine the permissions on some of them. Here's an example of my own:
You'll see all permissions are granted except WM, but including WMM. As I say, a full metadata migration will include everything (by definition), including all the access controls that are defined.
If you want to dig into it further, the base SAS front-end has a very useful metadata browser in Tools, Accessories, or I believe Metacoda have a useful plugin to SASMC @MichelleHomes ?
... View more