Not bsk but........He'll definately grow none on mass and spread, probably none on the brows, a bit on the G2's/3's and his main beams will grow for sure.
:grin:
I would guess him to be at least 3 1/2, but he could be 5 1/2, possibly even a super-healthy early born 2 1/2.
About the worst time of year to accurately guess age.