This is just the most ordinary divorce, no more, do not believe anyone until there is official information on the official website. And on the other hand, it is better not to add Catalan to the exchanges, let it replace the trade monetary unit and has a value
In my opinion I find it difficult to replace the euro, an exchange would attract new investors.
Legally it's difficult but if Catalans choose to ignore the Euro even partially to support their independence struggle it could have an enormous impact.But not without consequences for sure.