Tsukihime 2?

So hi /anime/
I have decided to hold a session about Type-Moon and their various works like novels,visual novels. Now I'm starting to gather notes about what I want to say during that session. I have notes about Mahoutsukai no Yoru, Kara no Kyoukai, Tsukihime and Kagetsu Tohya. Last week I came across this thing which is called Tsukihime 2 Prologue with Satsujinki (dunno how to spell it). Is anything else know about Tsukihime 2 except that and "works are in progress"? I know that Mahoutsukai no Yoru is supposed to be released this year

Never heard of an Tsukihime anime?

I did but I also heard it is so shitty that it's existence is questioned. I did watch it and I also question it