Since Sasuke , Orochimaru , Juugo, Suigetsu are in Konoha according most people. My immediate thoughts are, unfortunately, that they are seeking out the two elders of Konoha. Sorry, just the way I’m seeing it right now.
The ‘ones who know everything’… maybe there is more to them. I don’t know, though I still hold out hope that there is something more epic about whoever they are looking for. Kind of makes sense… fence sitters, not in battle right now, could have had access to information. The more I think about it, the more these two are mysteries in the manga that have pretty significant influence.