I would be really happy, if we get some kind of game manual / adventurer guide. Best, if it is something similar to what you got in the old games, like in Ultima or Quest for Glory. Especially the adventurers guide included in the latter one I really loved: you have some short game mechanics; locations, locals and their habits description; beastiary and spell book compendium; some hidden game hints ... at all that enveloped in a real funny "How to become an adventure" guide. (Not just only the standard keyboard commands).
Ok, in that old times you got that as paper copy together with the famous cloth maps ... now a digital PDF would suffice

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BTW: Has the topic of a game manual / adventurer guide / survival guide been discussed here before?