Well, a simple answer would be YES, of course YES and many times YES!!!
It should but it never will for one simple reason - each time waves of Google updates are reaching our shores we tend to react and each Google Dance generates a massive amount of buzz. Roughly four times a year all webmaster forums and blogs are swamped with laments and speculations - Google becomes the sole centre of attention. What more Google can wish for? This massive amount of free PR is too precious to give away.
The only situation I imagine is when Google would be so hard-pressed in its niche that it will simply be forced to be nicer to webmasters and disclose something that is until now a part of its strategical planning. If and when this happens it would only signify to me the beginning of Googles' decline.
