Originally Posted by
Arne1972
I am not sure about Schiphol's reconstruction plans, but the lounge manager indicated that the new lounge will open 'hierboven' pointing in the direction of the E-pier
I'd interpret that as meaning on the same level as the existing lounge ("here, upstairs" rather than "upstairs from here" - given that the BA lounge is already just about as far upstairs as one can go (except for the viewing terrace!)).
Most other lounges at Schiphol are on the same level (the Privium lounge is downstairs).