Been ages since i came to this forum..
Regarding the cripple status of Havoc, i think it's a gross mistake claiming that there's much "possibilities" with those medical alchemy powers going round as you put it. After all, we dont see Dr Marcoh healing his own disfigured face despite May (being from a nation of "healing" alchemy) helping.
But then again, another thing could be that well, simply because Havoc has NOT came into contact with any of these people yet. He's been pretty out of the scene since we last saw him at the hospital.
And when has Kimbley even been a part of this "medical alchemy" group anyway?!
But regarding the chapter, loved the fact that she's bringing all the old guys back. It's like they all have a sense of continuity and you dont feel that they're there for merely a "tale" and are one-off. Especially loved Mustang's face when he realised it was Havoc on the phone. Priceless!