4.5 week old puppy coat prediction

[Julie and Ellie]

Our little Ellie is 4.5 weeks old in these pictures. I don't see much wave in her coat. Can anyone tell if she'll end up as a straight haired Goldendoodle? She was by far the smallest of the litter of standard f1 doodles. At birth she weighed 7oz and at 4 weeks she weighed 3.1 lbs. She is super sweet and cuddly and I can't wait to bring her home.

[Julie and Ellie]

I should mention that she is the one in the red bow