Just gonna gloss over the joke (which doesn’t really work, just look at the account dates)
There’s currently 114 scenes within Pandora at the present time. With only 5 girls that aren’t even maxed out in devotion yet, which means there’ll be even more for them to unlock.
Reminder that more than half of the Pandora scenes are duplicate model swaps.
How would you go about putting all of that into the main story?
You don't have to put them into the story narrative. They can be avoidable scenes. Originally, we were promised that we could encounter sex with Mantics during downtime in the ship, before they backtracked all of that stuff. Lily's Pandora scenes would be the easiest to implement. You could find her having sex with them randomly while entering her lab, or have them be special scenes of her "testing" their capabilities whenever a new one is unlocked. The majority of Mantic scenes in general could directly be related and caused by Lily's antics, like how the few doujins Subverse had made all related to their plots being related to Lily's experiments.
Remember when StudioFow described these?
"Whilst walking past the Laboratory, the player can hear sexually suggestive moans coming from within as a bipedal alien stud called Bulgetto pleasures your Chief Science Officer. There is nothing you can do about this, so don't even try."
"An enigmatic alien known only as Chodestool will engage in doggystyle copulation with various crew members if you forget to feed him"
Bear in mind not every scene is not something the general audience will like, see the people that think mantic sex is NTR.
The one's who complain to the extreme about that stuff will still put up a fuss over Pandora or any kind of update to it. Many suggestions have been made as to how to appease these people, one of which is to give players an option in the main menu to turn off Mantic sex scenes from occurring in the game. There are even some hentai games with avoidable rape scenes of the protagonist's heroine's that allow players to turn them off or avoid viewing them.
You’ll also need to rewrite the script, create a method for what unlocks what.
They already have these methods used for other things in the game right now. You would just use those same scripts and flags for different scenes. The script they have which triggers a devotion sex scene after dialogue would literally just need to take you to a mantic scene instead. There is no major changes that would need to be made. The same applies to the current flag system they have for new NPC dialogue unlocks within the ship as well.
pay the VA’s even more than what they’ve already done to do more lines.
Well, their original advertisement, promises, and Q/A pointed to us getting Mantic scenes that were more than just loops. If every change is going to go back to "but they'll have to pay the VA's", then maybe they shouldn't make such big promises they can't keep? Maybe they shouldn't have milestones for raising X amount of dollars for those kind of scenes if they're still going to say "sorry, but budget".
Also, they don't HAVE to voice dialogue for those scenes in the worst case scenario. We already have a dialogue system with model bust-ups they can use to contextualize scenes without needing to use voice audio. In fact, this solution right here would cost them very little money to implement. I can explain further how they'd just re-use already made assets to have Mantic scenes with context added to the ship.
TL;DR: People have given them all kinds of feedback, many extremely unreasonable, many very reasonable, and many with complete understanding of their technical limitations. It's very tiring how some of us here will continue to act like nobody has referred these things every 20+ pages, as if it hasn't been discussed already here or on the various places Subverse gets ots feedback.