Just like Nights, the game has aged and won't be up to the current standards
The thing is, I remember reading that Sega had finalized the libraries for everything in the game (design, sound... etc) so why aren't they doing the rest of the chapters? I don't think it will cost tons with the research finished already.
No foreign sky protected me,
No stranger's wing shielded my face.
I stand as witness to the common lot,
survivor of that time, that place.
- From 'Requiem' by Anna Akhmatova