For my part, I do not think that mashima would have fun making believe the fan.
His would make him a bastard and he would attract the hatred of these and his mashima does not want it would be completely idiotic.
Neither would mock people with images like that, like that of erza lying on jellal, it's not trivial, it does not do it just to please or taunted people.
Not if he makes an image on it, he must assume it and in the first place it is that he himself approves of it.
If he makes a picture of natsu and lucy how to wear a family and lucy carries a baby, he will have to assume her will want to say what his meaning means.
He did nashi and the son gruvia, but it was not forced, nor threatened to do it, it is although he wanted it too.
If he really wanted to do it, he had to say it, even if it was to please the fan he was forced to do it.
He puts it on twitter, it is that he approves and wants to profit those who were not at the convention, it's nice of him.
When he says that children do not have anything with the main story, he is right because the main story is over, what happens next is something else.
Maybe it will make a bonus chapter on children but will get the bonus at the end of tome 63 for kept surprise can be.
But do not harass it with that either because mashima has the power with a tweet, it can satisfy or destroy the fan.
If there are too many who fuck him, he makes a tweet to say officially that no couple is canon and children either and that he fuck people.
And the fans shout, cry, commit suicide and all, only the hater will be happy.
As I said maybe it will reuse nashi and other for a bonus but they will be more kids I think.
But what I would like to see first is how natsu and lucy really put together the 1st kiss as I said I will want a THE LAST for them via the quest of 100 years.
But also see how gray gave her answer to jubia during the 1 year, so jellal will stop making her shy and went declared a erza.
See also how its also done for gajeel and levy.
And his mashima know the heaps of people send him messages to tell him, the FT zero 2 and 3, the 100-year-old quest, the children, he knows the expectations of the fans so it's him of that decided to the how or not, that he shows us all his projects that he promised.
But let him say so, let him not wait ten years for nothing.
For the moment we had the return of the animated, light novel in the projects, the FT coffee is not really for me a thing that I really expect in relation to the manga, so much the better it exists but I'm waiting for something else.
So I pray that he do this, plus the children but first the last and after the children.