As most of you may know the new jungle voicelines are now on the live servers. Since they are tide to the jungle monster he would most likely be a jungler.
Now take a look at this quote from Rengar's lore: Rengar never knew his real parents, but was raised by a human who was revered as a legendary hunter.
Personally, taking into account the lines, the new champion seems to get along with the monsters of the jungle. But if he is a jungler he will have to kill them (I think). Rengardless (the puns) that I think it would be very cool to see the Rengar's mentor/father as a champion.
What you guys think?