The 26-year-old signed for the Whites on a six-month loan deal from AC Milan in January.
However, despite admitting that he has been impressed by the Dutch midfielder's performances during his time in London, manager Jol has described a transfer as "impossible".
"You could see [on Saturday] that Urby is a nice, technical crowd-pleaser," said Jol. "But there is not an option on him because it would be impossible to buy him."
Emanuelson has made nine appearances so far for Fulham.