What are the different between Dies Irae 2007 version and Amantes amentes (Kasumi and Marie route)

[noking]

I've heard that apparently,  Marie and Kasumi route for Dies irae ~ Also sprach Zarathustra ~  was written by scenario writers instead of Masada? If that's the case then are there any different in the plot or something? Compare to current Amantes amentes.

Spoiler allows tho.

 

[Clephas]

Also sprach Zarathustra is generally considered to be an incomplete version, which is why it was rewritten into Acta est Fabula, which later was re-released as the non-ero version known as Amantes Amentes with a second ending and final battle for Rea's route.  You'll notice that the official website for Also sprach Zarathustra even got taken over by Acta est Fabula, and it is impossible to find a copy of the original version anymore.

There is nothing missing from the later versions that existed in the first version.  If anything, there is significantly less content in the original.