from what i have seen up to now is that PoE will be a IWD/BG/PS:T wrapped in a upgraded engine - wordplay on the infinity engine included (eternity=infinity)!
what about world interaction?
will there be anything else but clicking containers/doors or the occasional item or story relevant thing lying on the ground?
chop down trees? kick in doors? blast doors with fireballs? blast buildings? catch butterflys? - you kind of get where im going i think
if not - whats keeping you from doing that?