Fate/Apocrypha - All servants confirmed.

shinichameleon:

Source from Humanity6. According to Humanity6, this is official confirmation list of servants will appear in Fate/Apocrypha. 7 Red Servants, 7 Black Servants, Ruler and especially some servants were cut and replaced with new character.

Here the list (Note - * mark mean new servant that was not part of  the designs for the original canceled online game project.):

Black Faction

1. Siegfried (Saber) - Master: Gordes Musik Yggdmillena
2. Chiron* (Archer) - Master: Fiore Forvedge Yggmillena
3. Vlad III (Lancer) - Master: Danic Prestone Yggmillena
4. Astolfo (Rider) - Master: Selenik Icecol Yggmillena
5. Solomon Ibn Gabirol* (Caster) - Master: Rouche Flyn Yggmillena
6. Frankenstein (Berserker) - Master: Caules Forvedge Yggmillena
7. Jack The Ripper (Assassin) - Master: Reika Rikudou

Red Faction

1. Mordred* (Saber) - Master: Kairi Sisigou
2. Atalanta (Archer) - Master: ?
3. Karna (Lancer) - Master: ?
4. Achilles* (Rider) - Master: ?
5. William Shakespeare (Caster) - Master: ?
6. Spartacus (Berserker) - Master: ?
7. Semiramis (Assassin) - Master: Shirou Kotomine

Jeanne d’Arc (Ruler)

Discarded servants:

1. David (Archer)
2. Kintoki Sakata (Berserker)
3. St.George (Rider)
4. Musashibo Benkei (Lancer)

Humanity6 mention about introduction new magecraft called “Double Summon” where servants can be summoned as two classes: Semiramis, Ruler, Siegfried, Karna & Achilles.