Couple of musings:
1) There are many mentions of and allusions to gaming: One-Eyed Jacks, Windom Earl's chess playing, the dark scene at the Vegas casino, and now we've seen Cooper at the Silver Mustang. This may be a massive jump, but is it possible that Lucy's use of the word "Indian" instead of "Native American" could be an indicator that Hawk's heritage might have more to do with a stereotypical heritage than an actual heritage a la gambling?
2) The color gold: Dougie turns into a gold marble. Gold painted shovels. The gold ring (albeit with the green stone). Are the things manufactured in the Black Lodge forged of gold? Is Jacoby anticipating a war with the Black Lodge and forging his own gold things? ( I realized he had painted his mask with gold as well, which made me think of armor).
3) What would be the purpose of revisiting the entirely new but old Bill Hastings / Leland storyline? Does Bob lives there? Will there be more letters found under fingernails? Will the police team there ever find Ruth's body? Does it matter?