The former Rangers young player of the year has been the subject of interest from the German outfit.
And now reports in that nation claim Koln are closing in on their target who would be open to another switch until the end of the season.
There is not expected to be a purchase option for the club with Spurs still anticipating big things from their playmaker. But they will not stand in his way as he seeks first-team football on the regular having grown accustom to starting matches in Glasgow last season.
Moore, 19, was handed a massive opportunity on this season's Premier League matchday one as he started for the North London club against Brentford.
It was a poor result, though, for Moore and his teammates as they were blown away 3-0 by the Bees. And club icon Glenn Hoddle reckons his manager threw him under the bus at full-time for making mistakes in the press.
Hoddle said: "I think they struggled a little bit having Archie Gray and Mikey Moore down that right side, they weren’t pressing together, I think that’s what he’s alluding to, but he’s dug him out a little bit there.
"If you’re going to press you have to press together, it’s no good one person going on his own. Brentford’s first goal I’m thinking, ‘Richarlison, don’t go to the goalkeeper’, but he did, presses him, waste of energy. They were not doing that well."
De Zerbi after the match apologised to fans who watched the defeat and name dropped Moore. He said at the time: "We were not ready to fight in the duels. I think we made a lot of mistakes in the timing of the pressure with Mikey Moore in the left centre, we arrived too many times late.
"We lost too many duels to compete with Brentford, I’m sorry for that, I’m sorry for the defeat. I know we have to improve in the physical condition, we have to improve in the organisation because there were many new players."