Cobblers welcome back Wilson
Southampton boss Nigel Adkins plans to bring new faces to St Mary's this month but has ruled out signing another goalkeeper.
After a tough start to Premier League life, the Saints seem to have acclimatised to top-flight football, epitomised by an impressive 1-1 draw with Arsenal on Tuesday.
And Adkins has vowed to stand by his keepers - Kelvin Davies, Paulo Gazzaniga and Artur Boruc - despite all three having made notable errors.
The Saints boss, himself a former keeper, said: "We have a young goalkeeper in Paulo Gazzaniga, who is going to be the future of this football club.
"We have two experienced goalkeepers in Kelvin Davis and Artur Boruc.
"They are the three goalkeepers we've got now and I do not anticipate another goalkeeper coming in during this window."
Adkins is still looking to strengthen his squad in the January transfer window, with Cagliari defender Davide Astori among those linked with a move to St Mary's.
"I think you've always got to improve," Adkins said.
"You can't stand still. Whatever we've done in the past is in the past. We've got to keep looking at the future.
"We've got to keep moving forward, moving on and everyone has got to keep striving to do that.
"We've had our recruitment meeting well before the January window has opened.
"We have a good recruitment department, we have targeted several players, we have had conversations about availability and non-availability.
"I would like to think that during the course of the window a couple of people will be coming in."
Adkins also expects a number of squad players to leave for pastures new, but esteemed teenager Luke Shaw will not be among them.
He added: "As I have said before, Luke is better playing for Southampton Football Club, where he is being nurtured and looked after.
"He is still only 17 and playing in the Premier League, where he is getting an opportunity to flourish, to make some mistakes and to keep kicking on.
"We have a good culture here. He is under contract, we are not looking to let him go.
"This is best place for him at this point in his career. He has a big, big future in the game, which he demonstrated with his performance against Arsenal the other night.
"If anyone wants to try and do business, all the best dealing with the chairman."
Manager Brian McDermott has indicated that Carrico will miss this weekend's FA Cup third-round tie at Crawley after only completing his ?600,000 move from Sporting Lisbon on New Year's Eve.
The 24-year-old former Portugal Under-21 international can play in defence or midfield and is the first of Reading's planned signings this month.
"Daniel will train (on Friday) fully with the squad for the first time and then we'll have a look next week," McDermott said.
McDermott is hoping to rest some of his first-team players against Crawley with relegation-threatened Reading having played three games in seven days.
"Mikele Leigertwood has got a knock while Danny Guthrie hadn't played too many games and now has played three on the spin, so we'll have to look at everybody," he said.
"Pavel Pogrebnyak's been playing that lone role up front and has worked so hard for the group.
"There's a possibility we might make changes but it's a game we want to win."
Wilson joined the Cobblers' non-league neighbours towards the end of November and scored seven goals for the Evostik Southern Premier side.
Manager Aidy Boothroyd told the club's official website: "Lewis has done very well at Kettering and he's proved that he can score goals.
"He comes back into the fold but he won't be starting for us, unfortunately, as although we are not short of quality at the minute we are a bit short in terms of numbers.
"Ideally, I would like Lewis to be playing regularly but at the moment we need him here and it is up to him now to prove when he does get the opportunity that he is capable of scoring goals at league level."