what i would love to see is a lot more variation in fighting style, oblivion got tedious after playing for a while. perhaps the ability to switch between fighting styles some more fluent and graceful, some more defensive designed around counter-attacks, styles geared towards single strong killing blows that are harder to land but fatal with misses leaving the attacker exposed, crusader style with sword held above head and downwards attacking strokes etc. each style improving/leveling as you use it with different styles more effective against different enemies and therefore making fights harder or easier depending on your development of that particular style and changing styles mid-fight to catch your opponent off-guard. this i would love to see and of course play!