I'm gonna go ahead and repost something I said in another chat. We were talking about Gravity Falls, and how Alex Hirsch actually ended it without the show jumping the shark. That led to discussion about SU, and I said
"SU is sadly falling into that rut I was talking about earlier. I'm not sure the writers have a plan for how the series is going to end, and the release schedule CN is giving them isn't helping.
It sucks because the series keeps making me think its reaching its climax, but every time, everything returns to normal.
Like by climax, I don’t mean lil climaxes, I mean the final climax, what we’ve been waiting for since they were introduced: the inevitable showdown with the Diamonds. It keeps being teased at and hinted at, but it still hasn’t happened. When Peridot defects? Nope. When Greg is sent to the zoo? Nada. When Steven gets brought to FRIGGIN HOMEWORLD? Nothing. All of those are resolved in an episode or two. The last one is especially annoying to me because there’s so much that could have been done with Steven on homeworld had they extended it to like a half-season or even 7 episodes.
For the record, I’m not about to stop watching it just because of this. I am invested in the characters and the story, and they are doing some good stuff recently. It kinda just annoys me, that’s all."
Pretty much sums up my thoughts on SU currently. As much as I like SU, a good show needs an ending at some point, and it seems like SU's is nowhere in sight.