First, Lance McMillan is taking the lead on this series for Victory Point Games.
Currently at the "art department" (i.e., with John Cooper) is Albion 20, the hypothetical invasion of England in late 1805. It uses the new v1.1 rules and introduces more new things to show what the system is capable of (for all your future designers in this series). There's new terrain like minor rivers, fords, swamps, and slopes. The British have a new Militia type infantry unit with its own exclusive/optional rule.
After that will be Borodino 20. We were going to include Smolensk 20 with it, but with the addition of a third game using the same set of counters covering the Russian Campaign of 1812, we decided to lump the latter two together for a future "expansion kit."
Speaking of "expansions," Bussaco 20 will be after that, our first "system expansion" game. It covers the battle between Wellington and Messina in Spain and is a very interesting game situation. It will be budget-priced and require ownership of any other Nappy 20 Series game, because it has only 32 counters, no standard rules booklet, charts or tables (you have scrounge those from any other game in the series).
I'm not sure where Lance is taking us after that. Austerlitz, perhaps? He's got a bucketloada stuff in reserve (and needs more!).