You can ignore that Franklin Richards part with the F4/X crossover. But ya a constant need to get more Mutants yet only use really the ones that stared in the 90s cartoon.
Ms. Marvel has had a balance interaction with the Inhumans with first Lockjaw looking out for her, and when she needed help brought her to New Attilan. There (in her own book) she met Medusa, and Vinatos. Then later she appeared at Vinatos funeral (which happened in a different book). She was asked by Medusa for some help in CW2 when they were framed, and brought together Inhumans in IvX when the Mutants attacked and occupied to find out what was going on and how to solve the situation. Later on she was again on an Inhuman rescue team The (secret) Warriors which let her own book be kept out of Secret Empire.