Sorry for the long post. I started replying to some of Ricardo Rolo's questions and before I knew, it had turned into an essay.
If PrawnStar stays true to form, he'll bash Ming every 5 years from now aiming for the largest possible gain while provinces are still cheap. I think he'll gain the most benefit if he takes the expensive coastal provinces first. After one or two of these wars, province cost will be the limiting factor (as it was with Hindustan) so he'll need BB to tide him over. Hindustan, Brunei and some others are available for that.
Mutapa, African nations except Mali, and Americans remain cheap after 1650 because of the Colonial casus belli. He'll postpone those whenever possible. The only problem with that would be Brunei's occupation of some Mutapan coastal provinces (reported one or two posts back). They were taken just after the last serious war with Brunei, so I'm guessing they'll be on the target list for the next one. Sealing the coast would be enough, the inland provinces can be saved for later.
Other than that, Asia should be the focus now. With about 60 years to go, at an average BB burn of 2.2 or so / year, the Holy War casus belli should be good for a over a hundred provinces - 1 BB / province normally, 2 for annexation (if the enemy has 2 provinces). I'm not sure if that accounts for all of mainland Asia but Ming should be gone for sure.
In Europe, PrawnStar has said he's keeping an eye on the second wave colonizers' national ideas. So far, no QftNW = no exploration = no map spread = no colonization. If that changes, I'm sure we'll see an early English intervention, before exploration can get underway. Finally, the strategy is allow the HRE to unify. Annexations cost a lot of BB, all of which can be prevented if the German minors are converted into simple HRE provinces.
