I don't even dare to get my hopes up.
The pics are up since it was announced on amazon.de. But it clearly states in the title that it is just the third movie. The second one is listed ,too, on amazon.de with the same pics as the french version and is already live. So personally I think it's the same release in Germany as it is in France (individual steelbooks for every movie). Just the wrong pics.
Considering the price, the Italian version is probably the same as the French trilogy and thus no steelbook.
But yes, the pics show more than the listing of the Japanese trilogy. Maybe future releases are planned?
Back to the Future had individual steelbook releases in Germany and later on a trilogy steelbook.