Roache has split his season between the club's NRL, ISP and NYC teams while Tevaga has alternated between NRL and ISP duty.
Jones has shuffled his backline resources with Charnze Nicoll-Klokstad, the only player to appear in every one of the team's games this year, named to start at fullback after originally being selected in the centres last week.
Matt Allwood comes into the centres alongside veteran former Newcastle and Wigan centre George Carmont. Maumalo and Henare Wells are on the wings.
The starting pack named comprises players who have all had NRL experience this year, ranging from 2016 rookie Toaf Sipley to Gavet, the most experienced forward in the team with 25 NRL appearances.
In two regular season matches against Newtown - Cronulla's feeder club - the Vodafone Warriors have a win and a loss. They won 20-18 at Mount Smart Stadium in March but were trounced 38-6 at Henson Park in June.
WARRIORS v NEWTOWN JETS
Pepper Stadium, Penrith
6.35pm, Sunday, September 11
WARRIORS
1. Charnze Nicoll-Klokstad
2. Henare Wells
3. George Carmont
4. Matt Allwood
5. Ken Maumalo
6. Ata Hingano
7. Mason Lino (C)
8. James Gavet
9. Nathaniel Roache
10. Toafofoa Sipley
11. John Palavi
12. Shaun Lane
13. Jazz Tevaga
Interchange
14. James Bell
15. Upu Poching
16. Patrick Sipley
17. Viliami Kaveinga
18. Erin Clark
19. Marata Niukore