Rek'Sai will never be played in the Jungle.
So i'm sure everyone didn't see my Rek'Lane post but just about everyone who has played her on the PBE has figured out that her jungle is crap compared to her in lane. If she has lane dominance (Which she will have most of the time she's 99% ungankable, she has free sustain, ranged attack with decent damage, she doesn't need wards, she gets a free TP that also gives her attack speed, great wave clear a knockup, she's manaless and gets a true damage ability.
So not unless she gets nerfed in lane by making her damage affect monsters more then champions i think Riots new champion will be as much as a jungler as Aatrox.
Just wondering what Riot will do to her.