Disclaimer: ( I have not much info on inhumans and these characters in my repertoire)
Two nights ago Agent Carter aired and I believe we may have possibly be given the link to the galactic side of marvel via a side comment.
During the episode the Howling Commandos spoke of a yeti/abominable snowman that was believed to be seen by "Junior" Juniper. Now this piece of info seemed to stick out to me for some reason. I am not very familiar with the character but Marvel does indeed have a yeti character. in fact there are two versions which may seem of very large importance. One was named Carl hanson and transformed into the abominable snowman after years of searching. This version of yeti eventually helped the Howling Commandos and even fought against ...GROOT.
However there is a even more interesting note . There is an INHUMAN named yeti in the 616 universe who also fits the theme we have going there.
Yeti apparently is also is largely seen with the Inhuman Rapunzel. So Could these two possibly be part of the future storylines? What if Marvel replaces Rapunzel with MEDUSA?
QUEEN OF THE INHUMANS? given the nature of their similar powers it might be possible. Could possibly Marvel be using these two characters together to form a history of inhumans during peggy's time? and what of the "mermaid" ? Could she link us to Daredevil? Being part of his circus and all...
The ones who are familiar with the inhumans could possibly weigh more into this then I could. Let speculation commence@!