A few months ago they went to court to try to convince the judge that Jahi is alive. If she were alive, they can bring her home to Cali and they can sue for unlimited millions. Since she is dead, they must stay in one of the 2 states that make legal exemption for someone claiming that their religion does not accept brain death as true death, and they cannot sue for more than $250k. Everyone thought that the courts would uphold the death certificate and that she would finally be allowed to RIP. Instead, judge Freeman said basically 'if she is alive, prove it'. They went back to court and instead of offering proof they filed a request to bifurcate the case in order to establish malpractice without first determining life or death.
So, basically, they are admitting (without admitting it) that they have no proof and the girl is dead. So far all they offer as proof is reports of menstruation that cannot be proven, claims of breast development that can be disproven because they posted photos that proved she had breasts pre-death, and some hokey undated manipulated videos showing reflexive movement. As for her "maturing"--I don't think so! She was morbidly obese pre-op and she is losing weight due to wasting. Get rid of all that fat, and she is going to look more mature!
Here is the article explaining what they are trying to do now:
Medical Futility Blog: Jahi McMath Family Moves to Bifurcate Trial