Hayate no Gotoku author, Hata Kenjirou, has recently asked fans of the manga (via his twitter account) to point out elements of the unresolved foreshadowing so far they would like to see addressed in future chapters. This way, Hata hopes to prepare a list and make sure he doesn’t leave any loose plot threads unresolved (a viable concern with a manga title that has been running for several years now, and is planned to run several more if all goes well).
What followed was a veritable waterfall of tweets. But of course, Hata probably wouldn’t mind more suggestions. If any of you have something you want addressed, I’d be happy to translate the request and send it to Hata. Just keep in mind that the very basic ones – everyone’s past, missing parents and the like have already been covered, so the more specific you are the better.