There's information that sending files from the file manager via BT will be available in a future firmware update. This will basically mimic the functionality of Petrovic.

Of course that doesn't say anything about the implementation in the media player. However, there's a slight chance they could do it:
IIRC, one of the reasons it wasn't implemented in the first place had to do with the official certification of the bluetooth stack for images only. If now they really re-certified it to send arbitrary data, they could make the functionality available in the Media Player. You'll see.