There don't seem to be any rumors currently circulating to that effect, and rumors are all we can hope for since the company seems to be in an information lockdown mode.
Maybe Mark got tired of putting out PR's and then getting raked over the coals for all the promises and predictions he made that never came to pass. He may just figure it's better to let us grumble about what we think is (or isn't) going on than to have us grumble about what's really going on. Oh well, the truth will likely come out eventually.
The situation reminds me of a quote of old Ben's:
As we must account for every idle word, so must we account for every idle silence. -Benjamin Franklin
=^..^=
Cats are intended to teach us that not everything in nature has a function. - Unknown