Each race has its own unique skill (like Necromancy in previous Heroes games). The diplomacy skill will be more balanced.
The Phoenix will be in the game. However, it is unknown yet if it will be a neutral or summonable creature.
A diagonal move in combat equals 1.5 horizontal/vertical moves.
There are global map teleportation spells. Normally, heroes cannot fly, but under certain circumstances...
There will be no guns or mechanical dragons.
There is nothing wrong with the half-nakedness of Dungeon females, and they won't result in the game's rating being raised from Teen to Mature. Of course, it is becoming common to find adult material in everything, even in old cartoons. Speaking of the rating, some people consider Xena's outfit abnormal, even though XWP is supposed to be a teen series.
The hero experience system will be explained in late November or early December.
There will be maps larger than 144*144.