Xhaka was able to regain some match fitness over the worldwide break, turning out for Switzerland in two 90-minute appearances.
"We are going to decide tomorrow (if he plays) but I want to give him confidence and comfort". "Little by little, we can help him to come back and connect again with us and our supporters".
Emery will assess Sead Kolasinac before the Southampton game after the left-back returned to club duty with a tight left hamstring.
"He is coming back better in his mind", Emery said of Xhaka.
"I've (had) a very good conversation with him".
Pitching Xhaka into a match at the Emirates Stadium would seem a sizeable risk in the current climate, with Arsenal struggling for form and badly in need of three points from the league's 19th-placed side.
"I'm optimistic and I know we need to improve performances". However, there has been no official communication from Emery or the Arenal hierarchy on Xhaka's future.
"He's feeling better and his team is Arsenal now". "He wants to come back with confidence with the supporters, and we are going to decide".
The midfielder has been linked with a move away from the club in January, with Emery admitting earlier this month that he was unsure whether Xhaka would feature for Arsenal again.
Arsenal supervisor Unai Emery admits he changed into "severely stunned" Tottenham determined to phase systems with Mauricio Pochettino and transfer for Jose Mourinho.
"I would have stayed with Pochettino". His career is very strong with the titles, with the experience. That is my objective, and what I am working towards.
Xhaka played in both games for Switzerland over the global break, scoring in the 6-1 demolition of Gibraltar, and has previously expressed his determination to win back his place with the Gunners. And now, they made a decision to change.
"I still have a contract with them, I will be glad to return to the club - so we can finally sort matters out".