"I expect Hermann to leave Portsmouth in this transfer window," the Icelandic defender's agent, Olafur Gardarsson has told skysports.com.
"He has six months left on his contract and I don't think he will be signing a new deal.
"At the moment he has a couple of options available to him as there are some Premier League and Championship clubs interested in him.
"We hope to make a decision on Herman's future by next week."