^It doesn't have to end. But some of the ratings over recent years have indicated that the end may be nigh (although it did survive the Friday night death slot). Criminal Intent
has been moved off of NBC to USA and is pretty much on life support. And frankly, I think Law & Order
has been short on gravitas ever since Joe Fontana left.
Although, if the show were to keep going, I've always wanted to see Nana Visitor as a regular on the series. I kinda picture her as a female Lennie Briscoe.