Yes centaurs are way cool. Farheavens scenario had several problems which i won't nitpick - fleshing out the areas specific lore, locations, and local flavor will be much aporeciated.
I really don't like the new goblins, partly because i don't understand the why of them. Gnomes already fill the cute, funny, silly, mischievous scamp niche. The new goblins seem to just be gnomes with dex instead of wis. But then I'm old-school Tolkien where evil monsters are really Evil.Kobolds will be a nice change. I think they get over shadowed by goblins far too often.
I like to see scenarios that balance action and roleplay. PFS games are pick up games that virtually guarantee a mix of desired play styles. The drama loving role players shouldnt get to dominate encounters any more so than the min-maxed melee power gamers do.