A series such as Loki is a massive opportunity for representation, simply due to the number of people, queer and otherwise, it’s able to reach.
Writing such a beloved character as bisexual opens the door to a litany of new possibilities. Just don’t be surprised if Marvel slams the door in your face.
It is, of course, possible that Loki will lean into its protagonist’s bisexuality in the latter half of its six-episode season (though somehow I doubt it).