There is great scope for lots of WW1 cavalry.
Strelets have produced some great sets; mostly Eastern Front.
I would love to have some early War French Cuirassiers, Spahi and Chasseurs.
I would like Strelets to produce some for the more cavalry active aspects of WW1, e.g. Palistine.
That would include Turkish Cavalry, British Cavalry, Australian Light Horse, Bengal Lancers and a lot of Camelry.