Get masks/Selections from Camera Raw

Howdy,

first of all thanks to Adobe for bringing us the incredible new masking tools which makes life much easier!

What I miss now is that the masks are only available within camera raw or Lightroom in it's masking module. When I edit a photo in Photoshop as a smart object from Lightroom and double click the little preview I can access all the settings made in LR as usual even the masks are there! Cool so far.

But If I now want to do some advanced things with those masks it would be nice if the masks would be available from the "load selection" dialog as named selections.

Example: I selected some group of peoble from an image and now want to remove it from the background using the cool new "delete and fill" feature, then create a depth mask utilizing the selection and blur the background accordingly.

Thanks in advance,

Stephan

And another request that is as, or even more important would be to see other layers in ACR: https://community.adobe.com/t5/camera-raw-ideas/p-camera-raw-adjustments-in-context-of-other-layers/idi-p/12221138

That would be great to be able to export a mask. There are roundabout ways to do it, but it's time consuming. 

I know this might require a big structural change from the plugins architecture, but the benefits would be huge.
I am aware of workarounds such as creating extremely strong edits and using bleng modes/ luminosity masking to extract them.