[Endoperez]

Hi, and welcome! 4 and 6 have been improved - routing mechanics were re-done, and AI now builds castles. It still won't fare against strategies that an average player with Dom2 experience doesn't stand a chance against, but it is more challenging, and builds castles (which alone improves late game a lot).
If by 5 you mean fliers and light cavalry, there still isn't a "harass enemy and stay out of reach" command.
1 and 3 aren't changed, but you can see damage numbers in combat with few different colors for very basic damage sources. As in Dom2, you can also right-click on any unit if you've paused the battle.
I don't know what you mean by 2. There are few battle inconsistencies, but they should be rare. Battle inconsistencies mean that the battle is replayed differently on different machines or differently during the hosting and the replay in-game. Have you patched Dom2 yet? Quite a many battle incosistency bugs were fixed with the various patches.