So as of season 8, Mer has given up neuro as her consequence for messing with the trial. You'd think she'd still work with Shadow Shepherd since he's a neuro attending, but it seems, Mer is stepping back from neurosurgery all together. So the question is: what's next for her?
Well as of 8x06's promo, she's in pink scrubs. The only residents that the show has established to wear pink scrubs are the OBGYN residents... and there was a scene in the promo where she might be delivering a baby? Mer and OBGYN? I don't know... but it is something that's "different".