Ich denke die Kommentare unter dem letzten Update geben die Richtung schon vor... Hier ein Kommentar von Vodoo Games von vor zwei Stunden :
"Thanks for all the feedback! As we wrote, we are still evaluating our options and doing a normal foldable cardboard is also one of them 
Looks like this is the preferred option for most anyway. [...] We have high standards so once we get our hands on the cloth mat we will be able to judge better. But in the end chances are more likely to do a normal cardboard. Especially, since everyone like it more So yeah, cardboard could be the solution. Just have to figure out what is the best option to fold it as it is quite big."