It's just that, speculation. No one knows when or what the update will contain. We'll all just have to wait for whenever the update is released. But for now, there's just wishful thinking of what would/should be included.
No information has been released from Apple that says exactly what, when and if software updates can be expected.
It is assumed there will be updates, and searching around, you will find some users explaining conversations they had with "friends from Apple" or questions that were answered at a recent visit to an Apple/ATT store.
The consensus is that a few software and usability updates will be released between now and the release of Mac OS X updates.
It is also believed that the first of the updates will address critical issues such as the battery or serious bugs. New features, etc. will probably come later, closer to the release of the new Mac OS.