Looked at the spoilers, haven't read it yet but doesn't seem worth the wait to be honest. I love the double spreads and all but the plot hardly progressed after he took a 4 month break. I really hope he moves on already, and the mermaids are not a welcomed addition in my opinion. Berserk is starting to move from its dark fantasy theme, to a more "kids with magic" shonen theme; which is slowly making me lose interest in what use to be my favorite manga. I'll edit this once i read it and score the chapter, hopefully the few lines of text i saw in the chapter make me change my mind.
Edit: Just read it in Spanish, pretty much exactly what i thought had happened from looking at the scans. Ends with a cliffhanger which is annoying since we never know when the hell Miura will release the next chapter. Out of this entire "Pirates+Mermaids" saga this is the worst chapter in my opinion. If Miura doesn't start bringing back the old Berserk, this story will begin to fall apart. A victim to the old dragged-on-forever curse.