1. Is Stewie Now Invisible?

There's something of a running gag in Family Guy as to who exactly can hear Stewie - indeed, nearly all of his interactions and conversations are with Brian. Much confusion has occurred over whether or not other members of the Griffin family can understand Stewie's speech, especially given his tendency towards homicidal remarks - he has verbally threatened to murder Lois right to her face, and she hasn't batted an eyelid. If it is the case that only Brian can understand Stewie, Stewie essentially becomes invisible, and that is a huge problem for the show. One of Family Guy's best characters, if Stewie has nobody to interact with, we can't see any way for him to develop, unless MacFarlane invents a way for other members of the family to comprehend him. Whatever the case, the question of who exactly can hear Stewie needs clearing up, and on another note, we're really going to miss those 'Road To....' episodes.
What do you think about the decision to kill off Brian? Share your thoughts in the comment section, below.