jauhis from Nokia has write the following in response of a Dailymobile.se post (which i didn't published) about an approximate rollout N97 v2.0 firmware schedule :

I am not sure about the origin of the above but what I can say is that the schedule is incorrect.

We are for sure putting the N97 PR2.0 out for public download as soon as possible. PR2.0 will be a major overhaul of the PR1.x baseline. In fact, there is so much new stuff included that we will first introduce PR2.0 via NSU. The schedule for PR2.0 is still not verified, but I'd expect to find the open market versions being distributed by the end of this month (this is not a promise). You will be notified of the new SW availability via myNokia (are you a member yet?) and the in-built SW update application on your N97, which will notifiy you about new firmware releases in NSU and/or FOTA as well as core application updates such as Maps etc.

FOTA updates to PR2.0 will follow in due course.

I know that there is a lot of anticipation for this release and therefore we are putting an extra effort to ensure that your update experience will make it worth the waiting.

In addition to the above, next week we are introducing the latest version of the NSU client so be aware that you will have to update your currently installed version. The main changes in the new client include support for the N900 product as well as some minor improvements.