In a few weeks males will get those slim, pointy feathers hanging off the sides of the lower back, so that's when you should know if the males don't crow first. Mixes can be a little tougher.
It's an in-betweener. The comb/face get darker when it is flushed. I'm going to say cockerel because the comb has a little bit of height to it at an early age. Time will tell.