Lomax has been out of action since March, having undergone back-to-back knee reconstructions, and has barely played in the last two seasons.
“Jonny is in a good place, now roughly 10 months since injuring it,” Cunningham told the St Helens Star.
“He is fit and is light years ahead of where he was when he came back last time. Hindsight is a great thing though.
“The surgeon said it would be12 months at the time, and I have never known a surgeon to say that, it is normally six to nine months.
“He is four to six weeks off now, so he will miss a game or two and then we can filter him back in.
“He can run in the halves or full back – we can do lots of things with Jonny. He is an outstanding talent.”