Sweet Lightning may bid to follow up his Irish Lincolnshire success at Leopardstown on Sunday.
The eight-year-old could go for the Heritage Stakes, a Listed race over a mile, after making history by being the first horse to win both the English and Irish Lincoln.
"He's fine, there are no hiccups with him, he's grand," said trainer Tommy Carmody.
"He may possibly go to Leopardstown for the Listed race on the 14th."
Carmody has yet to make plans for Royal Diamond after last year's Irish St Leger hero finished seventh to St Nicholas Abbey in the Dubai Sheema Classic at Meydan.
"He's back home and seems all right. He ran a good race against the best in the world but was just out of the money," said the Curragh-based handler.
"I don't know where he will go next."