Wales coach Giggs said: “Another winger coming in would mean maybe less games. That's up to DJ to step up when he does get the chance.
“DJ was excellent in both last games. He made the goal in the first and was brilliant for us. He had not played a lot but looked sharp.
“Dan has friends here. He always enjoys coming away, the training, the atmosphere, playing for the country.
“If Gareth (Bale) and Aaron (Ramsey) are here or not, he's still a threat. He has got speed that always keeps the opposition interested.
"He has that directness as he showed in our last games. If he has not been playing it gives him the opportunity to get minutes.
“No matter what team goes to Wembley and wins it's a huge achievement.
“I have happy memories at both the old and new Wembley. Hopefully there's another coming."