I keep picturing Ivanka as Veruca Salt. "But Daddy, I want Nikki's job and I want it NOW!!!".
He'll nominate her. Sure he talks about nepotism but his base will 'pooh pooh' it, he'll tweet about how 'everyone' is telling him how great she'd be and how they want her to have the job, and he'll 'bow to their demand' that he nominate her.
This is just a long, slow train wreck. And unfortunately we're still on the train.