Don't go out from the point. The truth is the current movement system does not allow a mistake, a personal route or a calculation from the turns that will take to move to a far place. I prefer any system than the current.
And simple if possible, like first right click to set the path, and a second right click to confirm the movement.
There is an issue in Tactical battle: a unit moves to a selected tile, and stops movement, even if it has movement points left. I think we should be able to use the movement left if no other action is done (like attacking or spell...)