Vermaelen has been kept out of the Gunners side so far this season, playing only 10 minutes in the Premier League with Laurent Koscielny and Per Mertesacker in outstanding form.
Although the club's captain is not unduly concerned, with his season having started late because of a back injury, he admitted he would ideally like to regain his regular role to ensure his place in Belgium's first team for next summer's tournament in Brazil.
Vermaelen starts Tuesday's qualifying clash with Wales - a dead rubber after Belgium qualified last week - but there is as much, if not more, competition for a place in their starting line-up with the experienced Vincent Kompany, Jan Vertonghen and Daniel van Buyten among those vying for places at the heart of their defence.
"I'll have to think about that when it's necessary. January is still a few months ahead. Of course, never playing will not be the ideal situation for me to go to the World Cup, that's for sure," Vermaelen told the Daily Mail.
"People ask me if I panic because I'm not playing a lot but I'm not.
"I have spoken to the manager but it will remain private between us. Things can happen in a split second and change my situation. That can happen tomorrow or next weekend.
"In that case, we will speak differently in January. I have to be ready for that."