Speculation for pets:
1- You will need mats to craft a pet. Which means if you want a good pet, you will need 60x a rare mat, 30x another rare mat and 25x another rare mat. You will also need a few common drops, which will be impossible to buy in the first few days without going crazy in stupid boat 1 dungeons.
2- You can enhance your pets. Ferghus' hand will slip. Your pet will break. You will get half the mats back: a few legs, some fur/feathers, a few liters of blood, 1 ear, 1 eye, a few teeth. Break another 1 and you create a frankenstein pet with parts from both.
3- You can scroll your pets. You will fail everytime, making your pets go *poof* and making you rage.
4- Someone will find a way to make +15 pets. He will sell them for 500$.
5- You will have a shitload of stupid Nx items to put on your pets.
6- You will have even more shitloads of Nx related shit for you pets.
7- The AI will be shit.
8- Pets will make the host lag like shit, because it's already rare to have a good host for 8-man raids.
9- Those small bones you get in ortel will be usable by dog pets. Finally some use for those freakin items. (can you craft anything good with those small bones?)
10- More Nx useless shit.
11- You will see boats: 15k att and 8k def pets only.
12- No *name a Lann related pet* allowed boats
That's about it.