This past spring I got some Sarracenia flava rubricorpora pollen to use on my S. alata "black tube", and despite some initial problems - I had to pollinate the flowers as I was in the process of moving to Mississippi and my pollen got waterlogged in the cooler - I did end up getting some seeds, maybe like 60-70? I don't have much room (or expertise) to spout seeds though, so I gave most of the seeds to the pollen source and have about 25 for myself.
Right now they're stratifying outdoors, and I guess in a month and a half or so (is that right?) I'm going to move them where they can get some heat/sun so hopefully they'll spout.
Pitcher plant hybrid seeds stratifying
Should be an interesting cross if I get some plants from it!