Yo, Jetfire! It's great to see ya back, buddy!
I'm not positive when you left, so I'll post all of the updates that I know.
The War is going on right now, and you can buy a badge at, I believe, the Mage's Brewery to declare a side (coughJointhePurinescough) and gain access / RP in the war areas to get battle points for your faction! Right now there's a big scary battle going on where we all collectively take turns trying to fight a monster. ovo No pets can die right now, though, just faint, so it's pretty fair game.
Breeding got reformed too! Now everyone has 3 slots a month to breed Lucain, Paragon, Soveris, or Kuhna; doing a self breeding takes up 2 slots, though. So now you can breed more often, for a pretty modest fee (80 for kuhna, 120 for all other species). Also, breeding posts don't earn KS anymore, since people were basically earning back what they spent before! Free breedings? Pshaw!
Kuhnas got updated--I'm not sure if you were here for that? :0 They all have shiny new lines now! AND you can alter them and do some pretty cool stuff to them over at the area in the marketplace called the Tiger Scintilla.
Add-ons are a thing! Users can now draw their own add-ons for pets, or get other users to draw them.
Quests are a thing too! You can head over to contest central to see the current quest for the month. They usually involve simple tasks like naming a favorite species, or even completing a 10-post RP in a certain area or about a certain topic!
I could be missing something so if anyone else can think of anything / wants to elaborate on something, please feel free. ovo