Someone on the High-Logic forums is asking how to create ligatures for Cyrillic. This can be done easily enough, though it is not automated yet. In FontCreator one can generate the common Alphabetic Presentation forms as composites of existing glyphs. Many less common Latin ligatures like ct, ck, it, ip, fb, etc., can also be generated.
How common are ligatures in Cyrillic Typography and which letter pairs or triplets are found in existing fonts.