revising my Eastern Europe supplement?

Well, it's been about three and a half years since I put together my Eastern Europe P&S supplement, and it's probably about time to start thinking about a second edition. So far, I've just been brainstorming possible new content. Here's some stuff I'm expecting to include:

• References to the Devil's Playground terrain/siege rules. (I'm not going to plagiarize anything, but I will direct readers to appropriate pages of that supplement, as some sections are very relevant e.g. Gulay Gorod, Abatis)
• Rules for Cossack wagons.
• New and variant unit stats for the main book's Polish and Ottoman armies (e.g. Guard Haiduks, earlier Hussars, Voyniks).
• Expanded Dramatis Personae listing (e.g. Ivan IV, Maksim Kryvonis, Devlet I Giray, some Radziwill or other...)
• Historical scenarios
• At least one battle report
• And of course, updated illustrations and typo fixes.

Other stuff, possible but not as certain, might include:

• Fictional Dramatis Personae (e.g. Taras Bulba, Onufry Zagloba, Red Sonya, Baba Yaga, Dracula).
• Additional army lists (e.g. Late Teutonic Order, 16th-c Hungary, 16th-c Astrakhan, late 16th-c Habsburgs, 17th-c Transylvania)
• Overall reorganization, i.e. alternating between the potted history and rule/list segments.
• Modeling/conversion resources.

This new phase of the project is in its infancy right now, but any thoughts or comments would be appreciated nonetheless. Thanks!