Division One club Cross Keys have lost centre Rhodri Davies to London Scottish only to gain several other players.
The biggest signing for the Keys is Simon King as forwards coach to replace the former Wales flanker Richie Collins.
King will work under head coach David Rees and be joined by Phil Ramsey as team manager.
Ramsey is the fitness coach for the Wales FIRA (under-19) squad, where Rees is the coach.
Former scrum half Tommy Walsh returns from English club Rugby RFC and another scrum half Steve Harris has joined from Calgary in Canada.
Other signings include the big Tongan utility back Movete Ota'ota, formerly of Treorchy. He is joined by last season's Abertillery skipper Darren Miles, Rhymney wing Romilly Barnett and Abertillery flanker Martyn Williams.
WRU International Skills Coach Jason Strange is a busy man, combining the new role with that of Wales Under 20 attack coach, Ebbw Vale head coach and continuing to teach at Ebbw Fawr Learning Community.
Warren Gatland and Sam Warburton look ahead to this week's crunch RBS 6 Nations tie against France, where the Wales skipper in particular is keen to make his mark, as Paris has proved a bleak place for him in the past.
Following their historic win over England, Wales Under 20 suffered a narrow, 36-34 loss to their Scottish counterparts last weekend, despite outscoring them by five tries to three. Watch the match highlights and reaction.
WRU TV go behind the scenes with the Wales squad as they put the final touches in place ahead of the clash against Scotland at Murrayfield. Follow the squad on their captain's run, the kickers visit to Murrayfield and Neil Jenkins' press conference