Exporting textures from blender and import in to ue4?

There’s some great addons that make the work between Blender 2.80 and Unreal 4.21(4.22 soon I’m sure),

Is the addon for the Blender to UE workflow:

For PBR from Substance to Blender to auto connect nodes:

I’m sure the above would eventually be added to your workflow, so they sort of go hand in hand.

The ultimate question is, will there be a smooth transition between all three, at least. If so, then I know I’d be a happy camper.