An interview with one of Schiphol's management was published in a range of Dutch media this weekend.

http://www.zakenreis.nl/popupmessage.php?msgid=3740 in Dutch.

Biggest reported issues (and nicely reflected at his forum) are security queues at the gate and the gate layout.

Apparently the plan is to separate arriving from departing passengers which would get rid of the security checks at the gate and to improve the gate areas (would they still be necessary?) as per the recent test at G7.

Will take a few years before it is implemented though.