It's unfortunate about the MARS NEEDS MOMS failure.
Zemeckis' 3 previous Imagemovers projects -- BEOWULF, POLAR EXPRESS and A CHRISTMAS CAROL -- are favorites of mine.
Polar Express gets so much flack and I don't know why. It's not a fantastic movie and Christmas pictures really aren't for everybody even when its in season, but as far as the uncanny valley goes this movie barely treads in it. Zemeckis' creepy-capture has shown us some scary and lifeless stuff but there was a lot of life in those characters. Maybe the glasses helped put a buffer between the viewer and the eyes.
I don't think mo-cap animation is a dead industry. A big part of the problem is how much Zemeckis had a monopoly over the medium. Just wait for Tin-Tin later this year. It's probably going to be huge.