Since Jim moved this topic in the 'wishlist' category

Anything Jim said and certainly the artillery. And vehicles to tow them.
Medics and ration carriers would be fabulous
Same goes for command groups.
Legion in summer hats would be great, but infantry, artillery crews and perhaps cavalry in winter dress 'capota' would be even better IMHO.
Moroccans in summer dress ie. shirt sleeves.
I feel that Moroccan and Legion troops need another set of figures. Charging with bayonets for example, or a mix between charging and throwing grenades. Something suitably ferocious.
I probably stand alone in this, but I also feel that some extra infantry sets in what you could call standard issue clothing would be perfect.
One or two sets in Guerera tunic and the same in cazadora blouse. Some of the infantry units, both Nationalist and Republican need a slightly more 'regular' look and these sets could provide that. Also the conversion possibilities would be almost endless.
But you know what? I'll be really greatfull for ANY new addition
