N Jolly isn't updating this anymore, but I thought I'd put this here for those who are still using his guide, since a fair amount of the info is obsolete now.
The Internal Fortitude + Flawed Scarlet and Green Cabochon Ioun Stone Rage Cycling combo doesn't work. Since Rage Powers are only active during the rage and you become Fatigued when you end the rage, you'd still become Fatigued (or in this case sickened) as usual at the end of the rage, since your immunity isn't active anymore. Source.
One due to Eratta: The Courageous Enchantment is Red now, or maybe Orange if you're really paranoid of fear effects. The bonus to Moral saves was always intended to only boost moral saves against Fear, but it was worded pretty poorly. So it doesn't boost any moral bonuses except for those against fear. Source.
Horn of the Criosphinx should be Orange... maybe Green? While it isn't explicitly stated for this feat specifically, there's a similar case brought up in an FAQ about doing your lance multiplier damage for iterative attacks end of a charge when you have pounce. It's ruled that because the extra damage is done from the momentum of the charge, it only applies on the first attack, since any further attacks won't have that momentum. So if we're generous any say that the Barbarian has 30 Strength, Horn of the Criosphinx will be dealing an extra 5 damage off of the first attack at the end of a charge. While that's not bad, that's kind of a best-case scenario, and it's still only on that first swing and only off of a charge. Compare that to something like Reckless Rage (a feat not in the guide because N Jolly isn't updating it anymore), and there's just no contest which is a more valuable feat. Source.