His decision is a significant boost for coach Daryl Powell ahead of their game with Dewsbury Rams tomorrow.
Saxton, 26, also featured in Super League with Wakefield and Hull FC and has brought plenty of dynamism to Rovers' backline.
"Tommy has been a massive part of the positives this year," said Powell. "His versatility gives us options and he has an edge to his game that makes him difficult to defend against."
Their opponents tomorrow are still seeking a first league win after suffering a last-minute defeat against Sheffield Eagles in their previous performance.
But Dewsbury chief Warren Jowitt could be bolstered by the return of influential trio Adam Hayes, Anthony England and Luke Stenchion for the trip to Post Office Road.
Halifax hope to have Papua New Guinea internationals Stanley Gene (knee) and Makali Aizue (hamstring) back for their game at second-placed Leigh, who will be without former Bradford Bulls star Robbie Paul for up to eight weeks due to groin surgery.
Third-placed Halifax could close in on their rivals but coach Matt Calland said: "We lacked urgency and enthusiasm against Keighley. We need a major step up against Leigh."
Hunslet Hawks aim to further strengthen their hold on Championship One top spot when they head to Doncaster.
Paul March's side sent out a frightening message to their rivals by thrashing Oldham 60-4 last weekend.
"It was a massive statement, but we've set a standard now and it's up to us to live up to that standard," he said.
Doncaster beat Swinton 16-0 to edge closer to the play-off places but chief executive Carl Hall admitted: "Hunslet seem to be flying at the moment.
"When we went to their place on Good Friday they physically dominated us but we will see how far we have come."
York City Knights hope to have former Huddersfield Giants captain Chris Thorman back for their home game with Blackpool.