The extension to the departure lounge is just to add more shops with no new designated seating areas although the odd row of seats might or might not be added in random locations.
A restaurant outlet should have opened last week located in a large area but might have been delayed by a few days and the super sized bar is also due to open this month which will accommodate many waiting passengers. Once both these outlets are open the departure lounge capacity will increase as the airport is expecting 1 million passengers to use the bar alone.
Plenty of NOTAM's are out regarding apron markings.
A1958/17 NOTAMN
Q) EGTT/QMPXX/IV/M /A /000/999/5152N00022W005
A) EGGW B) 1706130000 C) PERM
E) AMENDMENT TO TEXT AND CHARTS IN RELATION TO A CHANGE TO STAND
MARKINGS ON THE NORTH APRON.
NORTH APRON EXTENDED. STANDS REPOSITIONED AS FOLLOWS:
41R, 41, 41L, 42R 42, 42L WEST TO EAST. COORDINATES TO BE SURVEYED.
UK AIP CHART AD 2-EGGW-2-2 REFERS.
A1905/17 NOTAMN
Q) EGTT/QMPXX/IV/M /A /000/999/5152N00022W005
A) EGGW B) 1706080835 C) PERM
E) SOUTH APRON EXTENDED. STANDS REPOSITIONED AS FOLLOWS:
20, 21L, 21, 21R, 22, 23L, 23, 23R WEST TO EAST. COORDINATES TO BE
SURVEYED. UK AIP CHART AD 2-EGGW-2-2 REFERS
A1805/17 NOTAMN
Q) EGTT/QMPXX/IV/BO /A /000/999/5152N00022W005
A) EGGW B) 1706011244 C) PERM
E) STANDS 16, 17, 18, 19 REPOSITIONED AS FOLLOWS:
16, 17, 19, 18 NORTH TO SOUTH REPOSITIONED TO 16, 17, 18, 19 NORTH
TO SOUTH. COORDINATES TO BE SURVEYED.
UK AIP CHART AD 2-EGGW-2-2 REFERS