Congratulations on the birth of your grandson! It just goes to show us that we "really" don't know the gender until the babe is born! Sending many prayers for a speedy recovery for Katie & Michael.
The quilt is wonderful! I would ask Katie what she thinks. I suspect she won't be changing room colours at the moment & may just love having this. Maybe you could make something more "boy like" anyway. If it was me, I would love this quilt regardless.
Maureen