The Portugal international passed a Bayern medical on deadline day on September 1, but the move collapsed.
Palhinha later signed a new contract with the Cottagers, but is keeping the door open.
He told DAZN: “It doesn't bother me, I'm calm.
"I don't think much about what will happen next. This is an important month for Fulham and for me too. Everything that needs to happen in January will happen."