The striker was rested for Monday's FA Cup third round win against Leeds United.
"Robin will be back against Swansea. Will Thierry start or not? I don't know yet. I haven't decided," said Wenger.
"He can play behind or in front of Robin or on the flank, Robin can play on the flank too, but I don't know yet what I will do. They can play together, of course, and they did play together."
The Gunners are currently fifth in the Premier League table.