Over at DS-X2, they unleashed the boxart and included a list of possible pets in what is to be released as Nintendogs: Dalmation and Friends from Nintendo of Europe. The boxart, which you won't notice over to your right, shows every fireman's best friend staring off in the distance, wishing you would take him/her for a walk and show him/her some attention. What is wrong with you? Why don't you pet him/her? Are you some kind of monster?!
The roster of possible pups in the game reads:
Dalmation
Boxer
German Shephard
Golden Retriever
Yorkshire Terrier
Beagle