Short update from my side.
I visited my local Saturn market today and asked for the pre-order of their limited steelbook edition. The edition is not yet on their homepage but it's already in their system.
As soon as the edition will be on their homepage I have to pre-order online and pick them up in store.
But as long as it's not on their homepage I can pre-order them right away in the store.
I also asked if pre-orders are limited in any way. They told me it's no problem to order for example 10 pieces. So no problem from that site.
As the steelbook edition is currently not on their homepage I don't know the exact price but I assume it will be 74,99€.
Unfortunately it seems that there are no t-shirts as a pre-order bonus.
Anyone interested ?