I don't think so
do you think that in Lynette's diary it will be all stupid trifles? do you think that somehow we won't have to deal with the causes or the consequences of Lana's death? do you think that with Bianca it will be all a cheerful telling of anecdotes about Lynette? how can you consider closed the question of Chad? and Bella's husband dead or alive sooner or later will come out and I don't think they will be moments of fat laughs...
yes in fact drugs and prostitution could be a little bit threatening for the future of the boys... a little bit? like Riona's stalker who is sure to be a reliable and funny prankster
if you minimize every dramatic moment it's actually not that dramatic, the game could be called "the absurd adventures of the all laughing mad trio Arieth, Tybalt and Derek"
in reality there is very little resolved, all postponed to the next episode, there is always an episode in which something will happen, but not this one, the next one
if Nick was a spy, or whoever, sooner or later it will be a problem to face
if Quinn's problems were solved there would not be the looming shadow of Vinnie
etc..
why, with Sage do you see it as a simple happy ending? with her not wanting to commit yet and in a few months she'll be gone? and keeping Maya and Josy together will be simple? only for Jill at this point in the story it all seems pretty quiet, am the ghosts of the past will come for her too
I'm not expecting Lynette's diary to end in a bombshell; it'll probably result in the mc finding out she had a trust fund put aside for him with a little bit more than the pitiful 5K...
Sure, some more people will tie in with the Royces, but just like finding out Jill was a Royce in the first place, it's not all that important.
Lana's already dead, so unless Tybalt's gonna dig her up and start fucking her corpse as a surrogate Jill, her death isn't critical. I'm guessing she died of a drug overdose and Buddy, or more likely Ash, was involved, and this will bring Jill's arc into the rest of the game.
What more can come of Chad's plight? The mc found out the truth, he was shocked (the readers weren't), he told Sage, she confronted Chad, he wasn't ready to tell her, and she handled it extremely well; didn't force him out of the closet, and gave him space.
Will there be more to the Cheating Chad story? Why does there need to be? Sage enlisted the mc's help to prove Chad was cheating. The scope of the mission crept to include finding the side bitch. The mc delivered on all accounts. The arc is closed.
Chad and the mc have also buried the hatchet for past transgressions. Chad is happy. Sage has closure. What more can happen with this? The jocks find out and the mc stands by Chad? It's nothing momentous.
With Bella there is surely some dark trauma, but whatever it was, it already happened. When the mc finds out he will be there for her, and so will Jill, dialling the abortion grief hotline against Bella's wishes, but that's Jill for you.
All the drama you've listed are just complications. These serve to provide some conflict but it's all mostly fluff to propel the game along. There is no major story arc, there is no end game, there is just the mc, his cock, his bitches, his friends and college, with a few potholes along the way. No zombies, no end of world crisis, no evil cult. It's just a very well presented bit of fun.