My only problem with this is that whenever they eventually return the Phoenix to the X-Men (I don't want it back, but it's waay too tied to Jean at this point no matter how bad their break up was) all this stuff will just continued to convolute and muddle the water.
That said, at least Echo is rather inspired if we're going the cosmic STD route. I am so sick of seeing random Marvel characters with Phoenix inspred looks outside of variants and fan art.
Is the Phoenix Still Thor's mother? (I saw a panel of something like that). Ugh, damn it, Aaron.