Intresting case study for long period planets.
One has to wonder how stable the orbit is.
The NASA projections have an extremly huge Eccentricity of Orbit. I hope that this ration can be nailed down to some degree, but that is doubtful given the orbital period.
Will be intresting, with more observations, to calculate if aphelion is growing and perihelion is shrinking. That could make things intresting in some millions of years or so. I doubt that is the case, but can't be ruled out without more data, at least from what I have seen so far.
Just goes to show, we aint seen nuthin yet.....