I do not have a crystal ball and I do not know what Wizards is planning to publish. But, if they ever did publish a Dragonlance setting or a Greyhawk setting of some kind or even a Spelljammer book

I would be surprised if those books included an equivalent to supernatural gifts. As Marandahir has written, I think the gifts in the Theros and Ravenlofts books have strong narrative and campaign setting reasons to exist. Marandahir's prediction that something equivalent (or even more potent) for Dark Sun also makes sense. But, I actually do honestly believe that there are setting books that will come out in the future that will not contain the equivalent to Supernatural Gifts.
But, we'll see. It's all good.