What' s kind of sad and frustrating for me is that despite how godly the art has gotten, the story hasn't been as good as the Golden Arc. It has taken WAY too long to advance the plot from how that one ended.
The only two Arcs I liked were:
the Lost Children one, because it was a brief and well paced story, the other one was the Trolls Arc because it did add a so needed useful party member to Guts party, though a useless armor that IMO has lead Guts to more failed fights than successful ones.
Up to date spoilers:
Also at the point they are in the manga I don't really see a reason that would make Guts and Griffith fight each other. Griffith pretty much has what he wanted and Guts will hopefully cure Casca's state in the place they've reached. I can only see some sort of plot point regarding the sacrifice mark that will incite Griffith to pursue Guts and Casca.