Oh yes, I am sure some of them will survive and thrive, just as there are still magazines today, there may not be many where I currently live, but I am sure that there are still quite a few of them surviving.
Omni Magazine, was one of my favorite magazines, they print died in 1996, and e-died in late 1997 according to wiki. An example of a great magazine dying with the death of one of the founders. I have to wonder how many of the Tribes will survive a founder just hanging it up because of back-lash or a desire to do something else.
I wonder too. A fair few of the founders are witnesses and have been around a while and perhaps through pride alone, they wont give up until it's very clear things aren't working.