Originally Posted by
RachelGrey
She went a bit crazy when the terrigen mists killed Scott and several of the younger mutants. She took the war with the Inhumans too far at the end and ended up burning her bridges with the X-Men. She made some hard choices during the Hydra Empire under Captain America and she was forced to run New Tian as a dictator to keep mutants from leaving New Tian because Captain America threatened to kill any mutants that came into Hydra territory. She did try to brainwash teen Cyclops to be like his adult self, but finally gave up on that creepy endeaver after Jean talked her down from it. After Hydra's Empire fell and order was restored, Alex tricked Emma into helping with the Mothervine Virus which could wake up latent mutant abilities in everyone including humans who have unwoken abilities. Alex neglected to tell Emma though that the Mothervine virus would allow himself, Ms Sinister, and Bastion to enslave everyone infected with the Virus. Emma turned on Alex and the others and helped Polaris defeat them and she helped Polaris revert the axis inversion on Alex so that he went back to normal again.
After that Emma sort of kept a lower profile rebuilding Frost International. She helped with other heroes during the Infinity War, she helped teen Jean when she was trying to fight the Phoenix. She even asked Iceman to help rescue her brother Christian from her father (although it turned out to be Christian self punishing himself with a psychic construct of their father).
Emma then tricked the X-Men into helping her become Lord Imperial of the Hellfire Club. Although I think she had good intentions in trying to get rid of Sebastian Shaw and to stop him from funding anti-mutant technology, the X-Men did not agree with her lethal methods and were pretty angry about it. Since then she has still been helping the X-Men and other heroes from the sidelines. She helped the X-Men fight Sinister's forces alongside her brother Christian. She also assisted Jessica Jones in facing down the son of the Purple Man.
That brings you up to date, her current status is somewhat unknown after helping Jessica. Like other mutants she is keeping a really low profile in the face of the increasing anti-mutant sentiment world wide. Most people think that Emma is probably using the HFC to help mutants, and probably trying to find a way to undo or get rid of the so called "mutant cure" which completely gets rid of the mutant genome.