Bulbapedia states that three things a pseudo-legendary needs to possess are:
- 600 Base Stat Total
- 1,250,000 EXP at Level 100.
- Three Evolutions, it being the last.
According to Serebii's Pokedex page on Goodra, Goodra is currently two thirds of a pseudo-legendary, but no one knows it's experience at Level 100, so Goodra's pseudo-legendary status remains unknown, yet hopeful. I do imagine it will have 1,250,000 EXP at Level 100, but that remains an educated theory.
Hope I helped. :)
Source: Things I stated above, but couldn't be bothered linking to.