There are probably no formal agreements to take each other's patients, but that kind of thing often happens anyway when needed, such as when CI took some ACS patients.
The following posts which you may have missed allude to the currently shelved state of Oregon Cryonics:
You never know what will generate hysteria at the highest levels, such as the stem cell hoodoo. This is one reason why cryonics should proceed at a measured pace and under the radar. unperson's ideas about turning it into a popular religion are dangerous and totally off the wall.