I think the next update is not enough to predict the future support of the game.Will see in v2. Signs like delay and 3rd game are not good.
About hints, i have another mad theory:
In Phillip`s basement quest day 2, if Monica was bad girl she has experience with fuck machine (animation of it is another question). During that she had 4 orgasms in a row, Phillip saw it and made conclusions, Monica after that had interesting thoughts in cage. So - it`s clearly that in bad route in basement she couldn`t get 100 points => she can`t have 30 000 and main plot with investors will be failed (it`s basicly gameover in this situation). So what if bad route will lead to Monica will stay as orgasm hungry slave for Phillip. Details can change. Good route lead to 100 points, investors e.t.c.
There is still a lot of groundwork to do. EP4v3 will show us what we can expect.
Very good theory btw. Maybe you are onto something. But I´m not sure if Monica not being the head of the company again will lead to a game over. Maybe White could be a possible alternative. We still have a lot of sidecontent, that leads to nothing at the moment: Revenge, Marcus and so on. So DM has to go back and adjust some of the older content and this will lead to different endings. Monica being the head again is just most likely the path with the most content.