IIRC I think Yara after her debut was originally supposed to be younger but due to the media buzz and the success of her future state books they kept...
If you believe the rumors FNSM has already been scrapped because they let go of their storyboarders before they could start making the second season...
"We come into this world alone and we leave the same way. The time we spent in between - time spent alive, sharing, learning together... is all that makes life worth living." - Jean Grey