It seems to me that there ought not be a great deal of effort poured into the AI at this point, for several reasons:
1) CORE isn't finished. How can you write an AI for a game that isn't designed yet? AI-coding is the LAST step in the process; work in this direction in the meantime is only minimally helpful in the long run.
2) HOI itself isn't finished yet. The pending redesign of the naval system, as well as the addition of new features [AI paraeters?], etc., will DRAMATICALLY affect the design of the AI.
3) The tech tree isn't done yet ... ergo (see above).
Am I off my nut? It seems to me that the whole focus of the game once we get to 0.9 should be AI, but not until.