The Iceland internationalist was linked with a move to the Scottish champions during the summer, only for Celtic to baulk at a £5m fee.
The 24-year-old has since scored 13 goals in 14 appearances in the Eredivise this season but intimated yesterday that he would consider a move away from the Netherlands. Celtic might be convinced to rekindle their interest in a move, with the club having conceded that they need to add to their front line after an impoverished Champions League campaign.
When Finnbogason was asked about where his future might lie, he said: "England, Germany, Scotland . . . who knows? I just want to score goals, be it in Holland or somewhere else."