I just finished a WC, and I noticed the AI was much more sensible in its building priorities. The 3 things I noticed the most were
Great job Paradox!
- The AI focuses economic development + manpower more, building manufactories, counting houses, and training fields almost everywhere.
- The conscription center + shipyard spam is significantly reduced.
- Fort placement is much more sensible. I didn't have to siege down a single level 8 fort in the one-province Pacific islands like Tahiti and Guam, whereas the European provinces of a rich colonizer nation are still properly fortified.
Great job Paradox!