Swansea attempted to land the Trinidad & Tobago international last season, but couldn't agree terms with Ipswich and instead took another of their frontmen, Tamas Priskin, on loan.
Scotland left the club 2 years ago for Wigan Athletic and has never since been able to find the form which helped him become one of the most predatory strikers outside the Premier League.
A move would come as a surprise, with Scotland now aged 32 and looking likely to be back-up at Ipswich this season.