>>6387543Owner of all the figma Sabers here. Original Saber, casual Saber, Zero Saber and (if I remember correctly) original Lily are compatible.
2.0 is compaible with dress version, and most probably the two new Lilys and this new Arotoria in swimsuit are compatible with them too.
But as usual with figmas and based on my own experience, even if they're intended to be compatible the faceplates don't seem to fit as nicely as the ones included in their own box for some reason. Minimal changes in the mold or something. You can totally use them anyways, though.