Ok some units will be able to fight better now, but what is going on with the Scarvet on cold-one? 3 attacks with damage 1? Just why take this guy.
I will most likely put focus on thunder lizards, that makes up for the poor saurus traits too. A carnosaur base has 3 jaws attacks for 5 damage. +1 for coalesced, +1 for thunderlizard trait, if you want you can use great drake constallation for +1 attack to all melee weapons. You are now looking at 4 dmg 3 spear attacks, 4 claw attacks and 6 bites at dmg 5. With +2 wounds and scaly skin to reduce damage, it should be a decent killing machine.
Although all this is just to do as much damage as a unit ironguts, for more points and with less wounds... eh ok, but still better than before I guess!
Saurus knights with +1 jaws attack is pretty good for the points, each model got 7 attacks, 8" move, 4+ save with reroll charges all for the price of a unit liberators, not bad.They do make saurus guard completely worthless though. Same wounds, same save, just knights got more move and far more damage.