he can always pick this game fanart artist to become his assistant
Yeap ... moreover (s)he promised to do it in one of her patreon's goal.
People tell (I don't know is it true or not) that (s)he has 2 computers: for composing scenes and for final rendering. Second one has 2 top NVidia cards 2080Ti Titan RTX with 24Gb VRAM each. Definitively rendering is not bottleneck, the real bottleneck here is composition of the scenes and there is only one way to speed up this process: add more manpower.
L&P excuses regarding scene's perfection are baseless. (S)He can split workflow with a partner in very effective and productive way, like partner prepares intermediate scenes and L&P gives those scenes final artistic touches. There are plenty of cloud disk solutions available in the internet for results interchange.
Instead what do we see in reality?
1. As far as I know, L&P refuses to collaborate with anyone.
2. L&P constantly introduce new faces into the game, thus creating more and more branches (therefore more and more renders) in the storyline
Considering those facts, I can only say that real goal of this project is milking via teasing. That's sad truth, game is awesome, I enjoy it myself greatly, but with such attitude it will never be finished. There are a lot of cultists, who just afraid to look onto game's final fate, so they will continue to feed dev with less and less feedback, driven only by hope and believes in almighty Creator.