Thing is there was plenty of trainees that could of debuted with RV (which is why I was so shocked to see just four of them in the end) so if they really wanted them, SM could of added them. It seems so unlike SM to add a new member when no one has left, so I'm still leaning on her being a featured guest.
I would like to here the girls rapping abilities though. I'm pretty sure Irene was classed as the rapper and Joy was too, so I'd like to hear if they can actually rap or if they're just fast-talkers.
RV was already a 5 member group, but one trainee left to focus on debuting as an actress instead, so I don't see why SM would randomly decide to bring back a 5th member months after debut, when they could have done it before.
