Gayle scored a classy treble away at Rotherham United on Saturday to move up to 13 goals for the season.
It prompted calls of 'sign him up' from the sold-out away end, and Gayle has left the door open for a permanent switch.
"I don't know really, it could be on the cards," he said. "For me the most important thing is getting promoted this season and finishing in the top two.
"We all know what we've got to do and we've got a lot of hard work before the end of the season to do that. I'm loving it here at the moment and hopefully that continues."
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