August has barely started, but the promotions for September have already been revealed. Good sets to pair with these promotions would be the upcoming Ewok Village (10236) or the Sydney Opera House (10234).
If you spend $75, you will get a mini version of the Volkswagen T1 Camper Van. This is an exclusive set that is not available anywhere else.
If you spend $50, you will get the Clone Tropper Lieutenant (5001709) minifigure. This figure was previously part of a LEGOLAND California promotion in June.