I think he will get beefier. It does take about two years for this breed. Just like big dogs! They’re all legs in the beginning then at 2-3 they build muscle. Kind of like human boys in the late teens/early 20s
He's going to get much bigger! This is my light Brahma, Dr. Crusher who just turned two years old on May 10th. Brahma's grow slowly and it takes two years for them to reach their full size. We think he weighs somewhere between 15-17 lbs and is about two and a half feet tall. In the first photo you can see him with his hen, Betty who's a pretty good-sized Wynodott. Overall he's a pretty nice rooster and lets us carry him around!