Considering they halted production to finish the scripts, and "Westworld" is only a portion of the story, and the fact it's an HBO show which has no reason to partner with Universal on this, I doubt it.
I alluded to it, but people should hope they're bringing back Ghost Town. The house was in-flipping-credible. The make-up, the setting, the layout, and one of the best finales ever. If any house deserves a true repeat, Ghost Town is it.
If it's a different western, I hope it's Vampires vs Werewolves in a western setting. The gore, combined with the violence of the period, could make something truly unsettling.