It would be awesome if they gave us a build themed stuff pack that didn't give us buy mode objects but just build mode. As for CAS items... a simple construction crew uniform with hardhat would go really well with the pack. In the pack it could include 10 new windows for both normal, medium, and tall walls, a new variety of single and double doors, and new stair types like L-shape and U-shape. Other items that would go great with the pack would be some new wallpapers, terrain paints, fences, and railings. Maybe three to four architectural influence themes like Mediterranean, Gothic-Renaissance, Nouveau/Baroque and Moroccan.