ErthTK or TK and JF for next season or only one of them? or neither of them?

Another popular suggestion i've had is rk-mma: but as it stands, i don't want to add it for the reason of it being just a harder lenshu. I definitely don't know too well about rk-mma but that's the vibe I've always gotten from it. Is there anyone that could prove me wrong, if I'm wrong?