Will this be the first MacBook that will be thicker than its previous gen? I am hoping Apple has realised that they are at the limit of what the current MacBook

Will this be the first MacBook that will be thicker than its previous gen? I am hoping Apple has realised that they are at the limit of what the current MacBook Pro can do in terms of thermals. I want a laptop that doesn't have its fans spinning non-stop only because I use an external screen or Firefox instead of Safari.