Agreed on Hungary.They are supposed to be conquered by Turks and Austrian, whoever succeeds but they aren't suppose to survive until 17th century then fall into an Austrian PU...Switch Hungary's +Coring Cost with...just about anything really. I just want to see the Ottomans occasionally threaten Vienna, not see them ignore Hungary because it's too expensive to core their lousy land.
Everyone who has +heretic tolerance, trade it out with +Religious Unity (or "negative tolerance gives no penalties"). Or better yet, get rid of that stupid event that makes heretic tolerance an actively bad thing. Also, Gujarati ideas should probably have either religious unity or heathen tolerance; it's a bit strange that they are practically the only Indian nation without it, despite being a Shiite state ruling over Hindus.
Manchu should get a bigger manpower boost, so they have an easier time conquering China.
I think keeping England without additional colonists is fine; other than the 13 colonies and a few islands, most of their empire consisted of things they conquered from other nations (either non-Western nations like most of India, or other colonial powers, like French Canada).
It'd be cool to see a Siege of Wien.