Since DOS2 relies even more heavily on environment effects and magical surfaces a waypoint system in combat would really increase the comfort of navigating your characters (especially melee classes) on the battlefield, avoiding all those nasty surfaces. While outside of combat characters now automatically avoid dangerous surfaces during combat the game only always offers the direct way to your goal. If you want to avoid surfaces, you have to do that by several manual steps, splitting up your APs:
The maximum distance you can cover with your AP in one step, right through the fire surface
Three manual steps needed to avoid the fireIn the example above the distance the character covered was exactly the same (18,8m), so that's not the issue here. It's just more time-consuming and tiresome to do all the steps manually instead of doing them in one, fluid step. But there are also other examples in which the system is not only more tiresome but also handicaps the player.
Example:
You have 4 APs left and want to attack a character who is 10m away. To cover the distance you needed 2 APs and have 2 APs left for attack. But on the direct line between you and the enemy is a necrofire surface you want to avoid. Only way to circumvent the surface is to split your approach up in two steps, covering a slight detour with a distance of 12m max. 12m in a direct line would only cost 2 APs as well but since you have to split it up in 10m for 2 APs and 3m for 1 AP your approach result in 3 APs which only leaves you 1 AP for attacking.
This handicap could be circumvented with a waypoint system in combat that only calculates total distance for the overal AP consumption. For the example above that would mean that you mark the space where you want to change the direction of your approach (e.g. by right-clicking on the ground) and then finally click on the space where you want to move. The system calculates your total route between your starting point and the waypoint and the waypoint and your final destination and charges your for 2 APs instead of 3.
So a pretty simple waypoint system would make both the overall navigation in combat more comfortable and at the same time would reduce possible handicaps due to the manual navigation around surfaces.