The only wish I've is that

Original Sin has those 4 magic skill trees (fire, water, eard & wind/ear) to use in turn based combat or also to burn wood or make a pool of water to do your dishes

...
And that the other 2 skill trees are for NON-combat (or passive skill that can be useful in all kind of situations, combat too), like lockpick, stealth, etc ... such things ! Maybe also a very special skill Larian Studios is making (like they did with Mindreading for DKS, that was o so nice, fun .. very great !)