Using notification receivers in variable possible?

Scenario is like this:

A file is sent through workflow to "Awaiting approval" state, notifications about this transition is chosen dynamically and sent to 3 of 6 people in the Approver group.

Is it in any way possible to get these 3 names/receivers and put them in a file datacard variable so file status will be something like:

Document Status

Current State:

    Awaiting Approval

Checked out by:

     -

Last version comment:

     New revision

Awaiting approval from:

     User Name1, User Name2, User Name3

If anyone have any thoughts about this, i would be grateful, either using built-in options, dispatch or add-in.

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