Here's the single rule of thumb as to designing a badass main character: give him a long scarf and a coat.
I thought the new OP is generally pretty well done. I like how snow and Apocalypse Virus are imaged as same matter and Inori sitting in field of flowers at the start and end of the video. Song is also lot more upbeat than the first, hopefully signifying the change in pacing as well.
Anyways, mostly Ayase episode as she tries to cope with the loss of Gai, and typical bullies and terrorist attack to help her get over it. Her Void is self-explanatory, if not a little bland. I was waiting for her to do a variation of Spin-zaku but that never happened, but Shuu Yoko-Ichimonjigiri'ing the End Rave was good enough for me. Now that I look back we haven't seen much of Shuu with Inori's Void since the first few episodes...I hope that changes in the last half.
The Daryl x Tsugumi scene was rather random. I wonder if this is a start of something new? Or maybe not. Either way, I hope Daryl also gets more spotlight. He's like the only interesting villain left for me.
It looks like Keidou is alive and is the Prime Minister of Japan now (lol?), although probably not the same Keidou we've seen last episode. Shuu and the students are locked out and is about to be the victims of military's plan C. But hey...since Shuu is now able to pull Voids out without having the host faint, and evidently pull more than one of them at the same time, he's got a huge arsenal of weapons literally in his hands. Can't to wait how he fares.