Bolton manager Sam Allardyce said: "We will decide on Martin between now and the end of December. But, at the moment, it looks like being a definite yes.
"With so many players leaving [for the African Nations Cup], he could end up being first choice. And, when they come back, they might be the ones who find it difficult getting into the side.
"Martin's had to wait patiently, because of the form of Abdoulaye Faye, and it's been difficult for him to break into the side.
"But, when he gets the opportunity, like he did at Fulham, he shows us that, defensively, he can be the perfect cover for Abdoulaye.
"He makes a nuisance of himself, destroying the opposition and winning the ball, which is such an important job."
Meanwhile, Bolton are being linked with a January swoop for highly-rated Lincoln goalkeeper Scott Loach - but could face a fight with Liverpool for his signature.
The Reebok Stadium outfit have reportedly been running the rule over the 17-year-old in recent reserve games.
It is believed that Liverpool are also set to check on Loach ahead of the Christmas period.