I wish this would happen in my games, the colonial and native wars in India were far more interesting then the ones in North America, in my opinion.You do see the infrequent collapse of a Vij blob, though. Most recent game featured a united India Vij blob that must have had a bad run of Regency and events b/c it totally disintegrated from no apparent outside forces in ~20 years in the mid-17th century. Made my glomming of southern and central India as Spain that much easier (plus I propped up via cash/alliance Bihar and Raj so they could act as buffers to other Euro expansion and interference by lesser types).
On Byzantium: I really want them to annex their vassals.