>>54829671There won't be any answers to any of the questions SV asked itself. You won't find out about how Paradox Pokemon really came to be, you won't find out anything about how Terapagos works, and you won't find out if Heath's expedition was real or made up.
This is because it's all a metaphor for the Academy Treasure Hunt, I.E. there is no real answer except whatever helps you sleep at night.
The final line of dialogue before the DLC credits rolls will come from Nemona, who asks if (You) finally figured out what your treasure is. You won't get to answer because the credits kick in immediately after.