Well for the most of it you might not need to be a Marvel geek, but for those who are, they would recognize the Characters imediatly ( i mean Baron Strucker, and Scarlet Witch, QuickSilver) people would notice "loki" scepter, on wich they were experiementing on, and from wich they were controling Scarlet and Quick ( they even mentioned that in the scene)
And the “Age of Miracles” namedrop is interesting, assuming that’s the correct translation, since we know Marvel Studios cannot use the term “mutants.” They’ll officially be dubbed “registered gifted” and although we don’t know the origins of their powers just yet, we think it could have something to do with
The Inhumans, another property Marvel might be looking to adapt after
The Avengers: Age of Ultron in Phase 3 of the franchise.
For those who dont know Both scarlet witch and QuickSilver are the son and daughter of Magneto, ence being one of the ties to the X-men, and mutant stuff, and "Age of Miracles reference", wich folows up in the same theme of nazis or hydra being experimenting on Mutants or gifted...
We dont know how marvel will handle these characters yet though, they might not dwelve in too deep in their origins, only they are being used by hydra.
Also if you recall loki scepter, isnt realy lokis, it was handed to him by Thanos in the avengers movie, So it will link to thor movies, as well the Guardians fo the galaxy movie... so, theories abound that the scepter contains another infinity stone, wich so far, this stones have been a crucial part in the whole story on the MCU, and it will lead somewhere.