Looking at the online site to buy tickets currently have the following available.
IG - Lower blocks B,C,D,E,F (718)
IG - Upper blocks K,L,N,P,Q (302)
QL - blocks B,C,D,E (1,239)
2,259 in total available.
Doesn't include family block tickets sold (IG - Block A) or closed blocks seat restrictions (IG - Blocks G,H,J,R? QL - Block A?). If calculating based on 10,000 capacity.