O yeah! Forgot to post the answer..
N. truncata x aristolochioides. Lots of great guesses! Not surprisingly it looks alot like many of the other hybrids mentioned at this time. N. truncata is one that takes it's time showing it's mature features (as is N. maxima). It will be interesting to see what happens when they get bigger and truncata traits start to kick in... particularly with the large flaired peristome for that species.
btw the leaf with the wavy margins is a N. veitchii highland.