Glee has huge issues. Single biggest character issue is Sue. One of the biggest mistakes the writers made was Making Sue's behavior's larger and larger. Lynch is absolutely wasted in the ole as its no longer funny in any real way.
2nd is Will, when the show started we got to see much more coverage on the adult storyline that was centered on the character of Will. But by the half point of the 1st season it was dropped, and then focused solely on Emma, Sue and the students. The character has always had issues (why do you think he stayed with Terri for so long). But now to show that side of his character its getting to the school and not just with Sue or Emma but his actions with his students (this is fairly new) and is massively harmful for the character. An episode here or there OK, I can understand, but that behavior can't remain with the students. Part of me wishes to see him and Emma and Sue completely removed from the show.
Two many characters. The show has tried to have its cake and eat it too. Clearly the show is going to feature Rachel, Kurt, Finn, probably Santana until its end. They remain (with a couple of other exceptions) the stars of the show. But the show didn't just include those characters this year, they also tried to include every single cast member who graduated last fall. That was a huge, huge mistake.
And while I have liked a couple of episodes that have focused on the new students, I still over all prefer the New York characters.
They really need to cut the dead weight on this cast. Actress who played Brittany is pregnant, so I am hoping they drop her character (really, really wish this as I think for the most part Brittany is a one note joke that stopped being funny in season two).
It appears that the show is now setting up three locations for stories. New York, Lima High and the university of Lima.
All I can say is they better really focus on characters, because with this large of cast it does no good for anyone.
I agree with them making a mistake in bringing everyone back this season. I enjoyed most of it but they tried to do too much and it came off as half-assed because of it. Really hoping the UoL thing doesn't become another area of focus on the show.
Mike, Quinn, Brittany, Tina, and Artie pretty much all need to move on (off screen) and just show up for that very special reunion episode near/at the end of the show. Puck can stay around to support Finn (and Sam for Blaine) as long as they get far away from the high school.
I'm honestly not sure how whatever high school stories that could still be told seem more interesting to the writers (after nearly 100 episodes) than all the ones they've neglected so far in NYC. I really like Kitty, Ryder, Will, Emma, Bieste, and Sugar but I'm all for letting them go if it makes the show better. If they're going to continue the split narrative they need to make it closer to 50/50 and replace the graduating members with either background characters or already established ones like Harmony or Sebastian that don't require several episodes of focus to introduce.
I think the show is setting up Mercedes to have a bigger role in next season also which I don't see how the show can support but I'm not going to pass judgement on that yet.
I just hope they take advantage of the summer to create a plan for the next two years and stick to it. Not holding much hope though. I feel like this show has the potential to be a train wreck but I'm pretty sure I'll be watching to the end.