Yes I imagine we'll get all that if we don't find out. For both sets of parents its the first grandchild so I imagine they'll want to know!
And interestingly enough, girls run in my family (out of 7 cousins on dads side- I boy, and out of 6 on mums side- again 1 boy!) whereas boys are more common in hubby's (he has a sister and that's it on both side of his families- all boy cousins and there's a lot of them!) plus there's the added fact that all my cousins who have babies have had only girls and on hubby's side only boys!
So we should balance each other out, so to speak!
We have other said we don't mind either way, just a healthy baby is enough
and its the first, so we don't have a preference
(Having said that, we'd like 2 kids and I'd love the boy to be first, just cos I believe the boy should be older to protect his younger sister at school etc. silly I know!)