This is either confirmation of the Main Girl Harem or trolling. It's probably trolling but I don't give a fuck. I'm opening the floodgates of speculation!
The path to MGH will be complicated.
The most obvious criteria is that all four paths must be open at episode 8.
Less obvious is that you must choose Bella. Jill will destroy the picnic photo and give up on MC unless you are on Bella's path and choose your words carefully on the bench.
Bella will only share if Jill is on board, sharing won't be on the table unless Sage suggests it and Sage won't suggest it unless Josy and Maya give her the idea. You gotta catch 'em all.
You must have neutral affinity in season 3 and you must NEVER choose the neutral option at major choices. In order to have the correct mix of DIK and Chick options at major choices you must play the first two seasons very carefully.
I refuse to believe that the MGH run doesn't include Merbella so you must have the choice of taking the shroom at the DIK's TG BBQ. This means that you must smoke weed with Tommy and Quinn at episode 4 (7th major choice DIK option). However you must also limit sexual actions with SGs to foreplay. You must NOT fuck Quinn.
For story purposes you must sometimes allow SG foreplay. In order to hear Jade's story of Stephen coming home drunk and calling her Cathy during sex you must let the handjob happen (6th major choice DIK option). Do not make a move on her!
The steepest price to pay for the MGH is the meeting with Madame. This is not for the faint of heart! Or stomach! And thus you must win Hell Week. This is not easily done with the no penetration limit. Also you must protect Rusty's car so mini-games must be turned on.
Derek's points: 7 (Fuck teacher, fuck feminist, sex out doors, Cum-petition, messing with Tybalt, nerd wedgie and sexy carwash)
MC points: 8 (Messing with Tybalt, sexy carwash, gay guard catcher, 3 slaps, prank alphas, beer, helmet and stripper signature)
The helmet will sabotage you with MGs so you must choose when you wear it very carefully in order to get the point.
It may be that MC is not allowed to mess with Tybalt for the story and must therefore sabotage Derek's nerd wedgie point. You must be ahead on points because Derek has fucked a teacher and wins in the event of a tie.
Penetration is not allowed so Envy can only give you the BJ. No anal with Envy! This is only available if you party all out at the Pink Rose (5th major choice DIK option)
In order to get Jill's shower scene you must have Chick affinity and thus for major choices 1-4 you must choose the Chick option.
As you do not fight the alphas you can't fight Caleb and the 8th major choice is Chick by default. So the only way you can punch Patrick is by fighting Tommy (10th major choice DIK option).
While punching Patrick is a must so is getting the documents so be polite. And tell Josy about Chad and Troy!
Tybalt will have MC's dick in his phone! But you must not punch him and win tennis fair and square. Getting the moral high ground with Bella is important.
I am woefully undecided whether you must take the friend zone route or the fuck buddy route with Sage. As her fuck buddy you get very important content such as the HOT movie night. On the other hand you must later choose Jill's picnic over Sage's illness and on the friend zone route you can decline helping her (you might even be able to avoid calling her in the first place can't remember that one) instead of having to cancel and go back on your promise to help her. It is a vexing conundrum.
The fake ID will turn out to be important later on so you must take it.
It is terrible but the story demands we meet madame and so we must not volunteer to care for the seniors.
You've been too nice with the alphas, chase them out of the HOT party with your devious tactics. Do not fuck SGs! Oh and make Becky puke! And rat Tommy out to Heather!
You must tell Sage about Chad. She will not fully love you if you don't hold her through the night.
I am not sure if you should help Derek get revenge on Ron or not.
You must cheat in the midterms. Bella will be disappointed in you but ultimately you will grow closer and more importantly you can give her important information on the real cheaters.
There, I think that's all of it. Now I have to wrestle these floodgates shut again...