I think the ball comes out to the 25 yd line when kicked into the end zone and no return.
If yesterday was any implication as to Bama kicking it into the end zone, it won't happen. I'm being a little facicious with this but it wasn't a pretty sight, Griffith's first two kicks weren't very good though and Foster had only one kickoff and it was fielded at the 15 yd line. Hopefully this will change as the season gets here.
CNS touched on the reason for the rule change yesterday and said he would love to kick it through the end zone each time because of the risk of injuries but that hasn't been the case just yet.