It#s anything but 98 % sure, this we learned in the past very well.

Don't read anything into it that isn't there. In this newspaper article only stands that U2 and Bon Jovi have asked for the Olympic stadium. That doesn't mean that it will happen. I just remember to last year where a concert in Braunschweig was already advertised at BJ.com and it didn't happen.

Asking if a stadium is free and booking it are totally different pairs of shoes. That they asked for it just means that they plan to tour maybe. The stadiums don't wait for Mr. Bongiovi to come and if they plan to maybe tour they have to ask for stadiums early enough to make sure to get it. But this doesn't mean that they are really touring. It could be an ask for in case that.

A few years back they already had signed a contract with the Festhalle in Frankfurt but the tour didn't happen. So even a signed contract doesn't mean anything.