Loki and Thor don't seem to hate each other.
We were quite nervous in advance. Sophia had really missed Jane, so we had Jane come in first and then gave them 5 minutes to have a lovely reunion before mentioning that "the baby" had come home too. By which point she was in a good mood and really interested to see him. So far she's only been a little jealous once or twice, and we've managed to work through things just fine. Original is here on instagram.
Original post on Dreamwidth - there are comments there.