I saw briefly talks of a War!Tori & Death!Tamara - so, are there Ellsworld/Mirror Mirror characters in this, too? Or are they definitely a work in progress? (And, are Ell & Matilda like their counterparts - Gluttony!Ell & Pride!Matilda?)
No to being the same sin as their counterparts. The Ellsworld characters are the Horsemen of the Apocalypse.
Tori and Tamara are, well, War and Death, Ell is Pestilence, and Matilda is Famine.