Conversation so far:
What is the realtion between Loki and MC2?
In this universe, Loki has a daughter, Sylene. She seeks revenge on the Avengers especially Thor for her father being sent to Limbo.
What is the relation between Loki and Journey to Mystery?
Loki was contacted by an echo of his former incarnation, who revealed he chose to sacrifice himself fighting the Void as part of a greater plan which would involve his death and return.

Question: What happened after that?
Self-contained rewrite: What happened after Loki is contacted by an echo of his former self and reveals the greater plan?