Once gone, Loki decided to walk amongst the trees in his mother's garden. He was not lying, he did have plans to formulate and notions to stew upon. If Hela was truly coming for them as he knew her most likely to be, they would need to be ready. If that meant Loki had to revert to old tactics and trickery, then so be it. He would do everything in his power to ensure a safe universe for his daughter to grow up in.