How far will the game stray?
Now, from what I've heard, "Minecraft: Story Mode" won't feature a Steve backstory. It will, however, include new characters. Now, I myself write Minecraft stories which add new things (mainly, anything that can help create a working origin story for Minecraft). For more info on that, go here. But, this isn't about my story, it's about your story.
So, Minecraft is known for its blockiness, cave diving, monster battling, and of course, crafting. Putting those elements into an actual story can be harder than it looks. A game where you can build anything you can imagine doesn't normally mash well with a game that follows a direct path. It becomes exponentially harder once you realize that the game series isn't going to use a origin story (and maybe not even Steve in general). So, if that is the case, than this game can either be really good, or really bad for your company. What's it gonna be like? Will you be able to customize your character like in Minecraft, or perhaps upload skins? Will you fight monsters, in a quest to eventually battle the Ender Dragon? Or will you use a popular Minecraft urban legend, such as Herobrine? What will the new characters be like? Will it be mainly new monsters, or allies? What will the allies be like? When will I stop asking questions?
I think that the real question is, how far will this story stray from the original game? It was OK'ed by Mojang, who vetoed an entire idea for a movie. So, it must be good, or Mojang must really not care. I, for one, am very excited for this game, whether it strays from the Minecraft norm or adds a completely new adventure. But, I am afraid that some people won't be that excited if you stray too far...