Sinny The Fool
Boogaloo Anarchist
Currently there are three people with DF. Garret, the captain of the Shatterchrest who has the logia glass fruit.
There is Cygnus who has the Operation fruit (Law's fruit)
And Finally there is Sora who has the Lightning fruit. However he doesn't know what it is and has yet to take a bite of it and hasn't considered eating for the time being.
Edit: As for how you get it in the future I believe it will be random just like it was for gaining the fruits to begin with. Though I'm not fully certain since that is in the future and us GMs are busy with the current arcs~
Glass logia? Never heard of that before, it sounds interesting. But it looks like the three DF's which are coming in play are very interesting already, I especially like operation :3 Versatality is nice with that DF. Also I guess you couldn't blame Sora, because there is always the chance of getting something useless and unless IC he already knows it is goro (In which I don't see why he wouldn't eat it) it would be a pretty hard decision to make out of free will unless he plans on using it to gain an edge in a situation that they would otherwise are at an disadvantage.
Also it's not exactly my main concern about when people get DF's because I don't really expect that to come for a while, but I was curious on how the system was going to work in terms of what the deciding factor is on what kind of devil fruit someone get's when they earn it or whatever.