Phoronix published an interesting article, where they collected some statistics about the kinds of open source licenses used by projects hosted on various project hosting platforms.
I was under the impression that there is some kind of backlash against the ‘copyleft’ idea, with GPL-style licenses losing grounds to less strict, BSD-style licenses. The statistics seem to indicate this is not the case.
There is not enough data to really answer that question. I would really like to see some analysis done over time to examine that point.