They had already suggested to EW that this fugitive Loki would be the subject of the upcoming Marvel series.
Interestingly, Loki has a show, Joe Russo told us when asked about the trickster gods fate.
That implies we may see that pursuit become part of the new show.

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Loki, when he teleports away with the Time Stone, would create his own timeline.
The minute that Loki does something as dramatic as take the Space Stone, he creates a branched reality.
Were dealing with this idea of multiverses and branched realities, so there are many realities, Anthony said.
Theres a question of, how did this separate timeline Cap come to reappear in this timeline and why?
Both filmmakers said those would be resolved in future storytelling from Marvel.