Four Yorkshire clubs - Featherstone Rovers, Halifax Panthers, Batley Bulldogs and Bradford Bulls - reached the play-offs last season, with Rovers earning a place in the Million Pound Game before losing to Toulouse Olympique.
It was a disappointing season for Sheffield Eagles, Dewsbury Rams and York City Knights as they found themselves finishing in the bottom half of the table.
There will be different recruitment agendas at each second-tier club with a number of deals already going through.
Every club's new arrivals are listed below, with more plenty more deals likely to go through before next year's campaign gets underway.
1. Barrow Raiders
Barrow Raiders - Danny Langtree, Josh Wood, Sam Brooks and Ellis Gillam.
Photo: Will Palmer/SWpix.com
2. Batley Bulldogs
Batley Bulldogs - Josh Hodson, Oli Burton, James Meadows, Perry Whiteley, Josh Milthorpe and Louis Collinson.
Photo: Vaughn Ridley/SWpix.com
3. Bradford Bulls
Bradford Bulls - Ryan Millar, Elliot Hall, Samy Kibula, Dec Patton, Jordan Baldwinson, Kieran Gill, Eldon Myers and Sam Scott.
Photo: Alex Whitehead/SWpix.com
4. Dewsbury Rams
Dewsbury Rams - Dale Ferguson, Jake Sweeting, Jimmy Beckett, Ross Peltier, Matty Beharrell, Oliver Greensmith, Harry Kidd, Owen Harrison, Harry Copley and Jackson Walker.
Photo: Allan McKenzie/SWpix.com