I'm guessing big. At least 9 lbs.
I could be wrong. DD was 9 1/2 lbs, but she has a different dad.
Still... stepDS was only in the low 7s and my XH had a baby with his current wife last April and he was in the mid-7s. So there is no way to connect DD's baby-bigness to my XH, or to think that my DH is going to make Caleb "BIG".
However, my gut tells me that I just make big babies. My sister makes them big too (10 lbs 11 oz & 9 lbs 13 oz).
I guess we'll see!!!!