I think PA is a great game. I hope to see it continue in some or many forms.
Here is my idea of the best opportunity to see PA continue.
1. On tablet or phone, Drop quest mode and concentrate on bug free story content and platform stability.
2. On steam, concentrate on multiplayer quest mode.
The dev team really has two products to grow, enhancing the revenue stream. Players can get different features on the two platforms. When all is working really well, there is still the possibility to merge it into one line.