Much prefer this type of system to action-based ones. I just don't like getting frantic with the keyboard and mouse and banging on my computer like its an arcade game. I prefer to sit back and think about my characters moves.
Okay -- I don't see any major game company as ever going back to that sort of system. But there are some optional things that game companies have been doing to appease us turn-based guys. Bethesda got creative with the Pip-Boy in Fallout.. but it seems the Skyrim community is all out against something like this according to an earlier thread.
But what about the classic "pause button" game mechanic where you can pause your combat and give your characters new direction before the next move? This worked in Dragon Age and Neverwinter Nights -- why not the Elder Scrolls? Pause it, give some direction to your guy like hovering your mouse over the enemy and telling the system to cast a freeze bolt at him. Unpause and the action occurs, with a random chance at failure. It is entirely optional -- you don't have to use it.. or even call it a "casual" mode if you like (a setting).
Any takers?