I can't see them giving us a "center the spell on this point" rather than on a specific enemy, and I don't mind that. Having a "Range Ring" around that target when casting AoE spells so you can see what if anything else will be hit by the spell/ability I could see as a not terribly bad thing. It might make things a tad too "easy" in some peoples opinions though.

And with the exception of Tactics AoE ranges haven't ever been show, that I can remember.