I'm going a little off-topic here but if anyone knows the answer, it'll be you guys!
I have the UK EIV version of the extended Blu-ray trilogy and it does not include the original subtitles in the Elvish sequences. They're player generated, in the wrong place, and I suspect that they're also the wrong font. Does anyone know whether a different release (such as the US or NZ/AU versions) has the correct subtitles?
Edit: And in case anyone wants to know, US Hobbit extended Blu-ray does have the correct subtitles.
Update (2 years later!): The US LOTR set has the correct subtitles.