Portraits in Dialog Boxes (Notes)

With many months passing since the creation of this topic, have the coders of this forum learned enough to quite possible concoct a patch that can essentially add a portrait to a dialog box based upon a custom or replaced piece of op code? In example, a normal hacker who's modifying the dialog (with this patch idea applied to his rom) adds the op code for portrait and adds a 1-14 number specifying which character it is.
Essentially, it would look like this with "POR4" representing portrait 4, 4 being Edgar.

Code:

<POR4><A4>: Banon!
We brought the girl with us.