Decursive and other logic based mods that cast spells intelligently to conserve mana by choosing the appropriate rank of spell and type instantly without so much as even targeting anyone in your party will no longer work ever again. Blizzard has made it quite clear that these types of mods are not what they intended and they are completely pulling the code that facilitates this out of the API.
Decursive, SMH, and many others are completely dead forever.