Collections looks absolutely stunning! Could have easily been a default WordPress theme, if only the timing (post formats / content blocks) was right.

Sounds very relevant to the big conversation about "Improving the content editing experience (in WordPress)" going on over at Make right now. Would love to see the ThemeFoundry guys come over there and share some experiences and ideas.

As for the "next theme" suggestion, I'd love to see a Presskit theme, basically ripping off this (unfortunately somewhat stagnant) project: