No idea if this has been hyped all to hell or not, but being a 2 part 48 page comic is great for people like me, who have stopped collecting single books (Honestly, it comes down to weight. I decided I wasn't going to move more than one box the last time we moved, and sold/gave most of my collection away to a friend.) One of the few comics I did keep is the last time Gaiman wrote Batman (With a really cute cameo by John Constantine) so, I will likely ask my brother to go pick this up for me. Not sure if this plays off of the Morrison stuff or not, but it looks fun.
What a great loss. I met Mr. Berenstain many years ago at a children's library fundraiser, and he inked a drawing of Papa and younger (now Brother) Bear for my son and I, and put our names under them, with his note "Best wishes, Stan.