seems that it might exclusive to Gamesonly.at but only in Austria. The news is also very old. So maybe the publisher changed its mind.
I'm more wondering about the name "Steelbook Edition" It sounds like a proper edition and not only a pre-order steelbook give away. So maybe that's the difference. All other countries will "only" get the steelbook as a pre-order bonus and Gamesonly.at will get the steelbook packed in a proper Edition :/
and the cover from the Asia Steelbook looks like the cover from the limited edition