1. I hadn't thought of that, that's a good idea, thank you! I'll see if this can be implemented without issues in a future update ^^
2. Rank 6 will be the last one
3. The next update in a few months will mostly be an optimization update without too much new content, if any. After that will be a big update with new content (including more boob content), but I don't have a date for this one currently... Sorry!
4. No comments! :B