Nasu revealed that he is going to update and upgrade a bunch of DAA, making them more powerful, and replacing some of the outdated ones.
I think these ones are guaranteed to stay:
1. Primate Murder - iconic character, has presence in modern TM works.
2. The Dark Six - their ritual is important for Extra setting.
3. Type-Moon - that's obvious.
4. Zelretch - iconic character and appears in many works.
5. Type-Mercury - iconic character and soon to appear.
6. Einnashe - is antagonist of short story and it's child appears in Case Files.
7. Chaos - key character for Tsukihime plot.
8. Wallachia - iconic character, appears in Fate worlds.
9. Gransburg - mentioned in Case Files.
10. Merem - is protagonist of short story, Nasu likes concept of Solomon.
11. Roa - key character for Tsukihime plot.
This means that other 17 DAAs could be replaced or removed (they don't hold significance in any work and is there just for the list).
Which DAAs do you want to see in the Remake, which ones do you think are better to be replaced?