Seems it is still undetermined which nest they will use. I'm guessing the new one. I've yet to catch sight of a bird in the old nest, and they should have put soft nesting material in it by now. Comparing the old Decorah nest to the Davenport/Alcoa nest (link above), the old nest looks abandoned.
Maybe next year! Until then the Davenport cam is good to watch. There's a tiny square button below the screen that makes the view full screen.
Secondary Progressive Multiple Sclerosis (or maybe RR), diagnosed '00
Everything will be alright in the end. If it's not alright, it's not yet the end.