I've ordered the steelbook edition as well! (I collect those)
Either way I'm playing it for the story and not the gameplay in particular so it's not a defining factor for me. A Kojima game *has* to be good
I always see a few people asking for C# in next engine and I always thought: Do I not know enough about that language to tell it will affect extensibility and customizability to the negative? Watching a video from SumRndmDde today I feel confirmed.