I just learned about a list of future seasons at the MET
http://balconybox.blogspot.com/2008/06/met-futures-page.html
it confirms what I think I've already mentioned: Miah Persson's debut
at the MET next season.

She will sing three roles she has done with success in other houses.
Gretel, which I think she has only sung in Stockholm, several years ago

Sophie, which she has sung in Wellington, Stockholm, Salzburg and San
Francisco, and maybe more that I've forgotten or do not know

Fiordiligi which she sang at Glyndebourne, a much smaller house than MET

Per