Ward has a knee problem as does Hall, who has his testimonial against Everton at the Ricoh Arena on Sunday.
"Jermaine, Elliott and Marcus didn't train yesterday. Elliott has still got a problem with his knee while Jermaine has got a little problem with his ankle from Saturday so we will see how he is," said City manager Chris Coleman to the CT.
"James McPake should be okay. He had a bit of a reaction to his groin because he has not played a lot of football in the last five months, so the quicker he gets back to back 90 minutes the better.
"But the disappointing one is Elliott because we wanted to play him again tonight but we can't do that now.
"Marcus has got a little problem at the back of his knee but he should be all right for Sunday's testimonial and we probably won't risk him tonight.
"It is nice to get the lads away. "We had quite a few trips last year so I just wanted to get the lads together for four or five days away from Ryton. It is a chance to do a bid of bonding as well."