The Norway defender, who has been plagued with injuries since his arrival at Celtic in 2010, rejected the offer of a new deal in February.
And Rogne, who helped Norway beat England in the European U21 Championships group stage on Saturday, insists his focus is on the current tournament not his Parkhead future.
"I still have a month left on my contract so I haven't left yet but it seems that way," said the 22-year-old.
"I am just here to enjoy these Euros, play with my friends and then we will see what will happens afterwards.
"I am not sure about interest from Britain.
"I've got no idea, my focus is on Norway and that is all I am thinking about."