Most people would simply rest the duck for about 5-10 mins at this point and slice it up. You can totally do that. I put mine in the oven for another 5-10 minutes because I buy duck at the supermarket and I simply don’t trust it. I would prefer it more cooked than the so-called ideal of pink, pink, pink. Mine is a bit less pink but I feel happier about it. So, the decision is yours.