User blog comment:Miskos3/Fairy Tail 2018 + FINAL CHAPTER Review/@comment-24053170-20170724210758/@comment-7418318-20170725054104

If they were "classical" reincarnations, they'd be like 3 month old at most.

Unless their souls somehow got sent back in time and born while the originals still lived, I'd count those two love birds as some weird ghost or illusion thingie that only the FT people can see, or just a nod from the author we shouldn't interprete too much into.