MadonnaTribe have received some updated info about the 2008 Tour that Madonna and her team have been working on since they were touring with the "Confessions" show last year - and that this site reported about first right after the last concert in Japan in September 2006.

From what we hear, the 2008 Tour project is alive and kicking - the time span they are working on at the moment to set tentative dates and arrange deals with the venues is basically the one of a Summer tour.
But - as the aim is to bring the tour to as many countries as possible - they are working on a scheme which includes a reduced number of concerts to take place in a single city, focusing on those who offer the best performance from a production/cost/ticketing point of view, and obviously the word "stadiums" comes to mind.

Also, there is a chance that we'll have to deal with itineraries significantly different from the ones of Madonna's two most recent tours - meaning that there's a chance that the tour will start in Europe this time around and not in California like Reinvention and Confessions did.

From what we hear plans to celebrate Madonna's 50 year birthday with a special event are still going on, although it is not sure if the much talked about Central Park concert in New York City will happen.
It also seems that the "birthday concert" is being taken into consideration for TV broadcasting and DVD recording this time again, like it happened with the Confessions Tour.

Plans are still yet to be final so we have to take all of the above with a grain of salt as things can change significantly in the next months, but the thing that excites us the most is to learn that - as of today - the tour celebrating Madonna's 25 Years in music business is a go!