Khaled can only do "one" thing at a time. Unicode has been added, yes, but the public beta is still just a beta. By the number of bug reports since the initial public beta release, the development of these features is clearly not done. Until he is done with this release, it's unlikely that he will tackle uPNP.
I'm sure he will plan a new round of features to add when this beta is finalized. However, it's generally unlike Khaled to "update" on whether or not a feature is in the works. So it will happen when it happens. It's likely he's noted this suggestion, that's probably the best you'll get.
