It is obvious that an track which;s OST hasnt been composed yet cant have name. In order to know the name you will need to wait till the anime airs, stops airinf and its OST to get announced (+ ~6 months).
I loved Fate/Stay Night but I acknowledge it’s faults. But the Fate/Zero novels were written by Urobuchi and the anime will be produced but ufotable so there was nothing that could go wrong. When it was announced that Kajiura will be in charge of the soundtrack I was stunned: it couldn’t be any better! I’m really looking forward to this anime and I’m even more exited now that I’ve seen this. The PV was good in itself but everything was overshadowed by the amazing music! Man, she just gets better with each track xD I can’t wait for this anime to start airing and I don’t think I can stand to wait for the OST release!