"One Angry Fuchsbau" and "Volcanalis" are meant to finally finish off this problem. The show's now spent almost an entire season getting Nick and Juliette back together; what should be a romantic reunion has fallen into the "it's about goddam time" phase of things, and I would be lying if I said that I thought there was any tension left to milk from this. Still, if there are any good episodes to put to rest the ongoing dilemma, these would probably be one of the best formats to do it in.
Both episodes are one-off crimes; in "One Angry Fuchsbau", the show turns into a courtroom drama with its antagonist, while "Volcanalis" deals with a fire-demon creature who kills those who takes his rocks and creates massive volcanoes. These have no real connection to the plot, and if they had occurred in the first season of Grimm, they would have fit right in with those stand-alone arcs. But the Juliette conflict keeps them rooted to the ongoing problems of this second half of the season.
"Volcanalis" also furthers things with Adalind, who is bent on getting her hexenbiest powers back by having the child of a Royal. There isn't really much yet to tell us just how this will work, but she's selling the kid to the highest bidder - a Gypsy woman who really, really wants a Royal kid. So far Grimm hasn't done a great job of settling things with the Varrat storyline because of its focus on Juliette, but hopefully in the coming episodes before the season finale things will become clearer.
"One Angry Fuchsbau" is quite fun for Grimm as it does deviate from the norm. It's equal parts Law & Order and Grimm, but it does a good job of keeping the courtroom bits energetic. "Vocanalis" is somewhat sillier than the rest of Grimm's episodes - the hellish beast is kind of comical in its mindless portrayal, and the final tactic to kill it makes sense but also seems a little too weak for a being of such magnitude. He can cause giant volcanoes, but a little liquid nitrogen douses his flame.
But if there's any really great thing to take away from these episodes, it's that the amnesia storyline appears to be over. And Juliette might even marry Nick! But with the heightened focus on Juliette comes a lack of development for the rest of the characters, and even Hank and Rosalee are entirely missing from "Volcanalis". Oh well, they deserve a rest if it means Juliette will get back to normal - whatever normal is for her.