User blog comment:SomeoneYouUsedToKnow/SYUTK's Vol.4OP Impressions/Recap/@comment-9090085-20161023022448

Wait, so the animation looks so bad because they increased the framerate? That has got to be irony.

I guess people who don't know what framerate is shouldn't arbitrarily demand a higher framerate.

(I'm being serious by the way - everyone is so sluggish that they look very fake-y compared to previous volumes... I actually found it to be a better watch on 1.25x speed...)

Now, as for the opening itself... I can already parse out a bit of information:

"Reptile Guy" is probably going to be a recurring baddy for RNJR this volume, given that he fights Ruby in this opening. He could be an assassin, or just be going after them for shits 'n giggles. I could also see him being the "fall guy" who gets soundly defeated at the end of the volume; his personality strikes me as someone with great skill, but is arrogant and tends to do things For the Evulz, leading to him making mistakes; and his level of competence hasn't been clearly established in the opening alone.

Weiss will likely have a straightforward story of wanting to break free of the oppressive cage living under her fathers gaze is(or maybe a failure is how he sees her?). But where Blake ultimately crumbles and flees from Adam, Weiss perseveres, eventually achieving greater control over her semblance.

Speaking of Blake, we may be meeting her extended family(for some inexplicable reason, the lady we see that looks a lot like her feels like her grandmother to me...). But Adam is still after her, and may force her to run once again.

Adam's shadow looms heavily over Yang and the two "Faunus" in this opening... I couldn't think of a clever segue from that, so just keep it in mind for this next bit.

Taiyang tries his bet to help Yang learn how to take care of herself with only one arm, but sparing with him reminds Yang of fighting herself - her whole self - causing her to fall deeper into despair. If that wasn't bad enough, Adam is not finished with her, requesting a pair "Faunus" a) Make her life a living hell; b) Kill her; c) Kidnap her so he can torture/kill her in front of Blake.

(as an aside, it is the Personas that say "I am Thou....Thou art I... From the sea of thy soul I come forth...". the Shadows' signature line is: "I am a Shadow, the true self..." Which, funnily enough, could fit quite well with that scene; it was her "in-it-for-the-thrills" personality that made her take to everything with such recklessness, and now that that might have bit her in the ass, she now tries to deny that part of herself.)

...It also looks like Ren stores StormFlower on his thighs... despite there not (apparently) being a plate or anything for it to attach to...

As for the lack of Grimm verity, I think the new engine is to blame; they probably had re-create the models from scratch for it, and couldn't finish any other Grimm in time for adding to the opening. That's not going to stop me from thinking that's lame(they should have at least had Nevermores to work with as well, given the trailer).