Arcane Templars Don't Count
I've tested several times and can find that Arcane Templars do not, in fact, replace normal Templars in 'any' of the recipes. Furthermore theres no recipes that make Arcane Templars in any shape or form. This last one might just be minor, but there may be people who prefer them with these skins.
Game Version:
Steam Public
Platform:
Windows
To clarify, i've tested with Templars that come when you just have the arcane theme, and they work, but the Arcane templars you find in the Arcane Fortess, the ones that attack you, do not work in the sacrifice recipes