I wouldn't underestimate the esteem he's held in in the Kiwis set-up.
Fair, Phoenix is someone every player would want as a teammate and every coach would want in their side.
Despite all his off-field misgivings and injury history, Brandon Smith in a Kiwis jersey has always been an "Origin Gagai"-esque proposition. With some decent club form under his belt and looking his fittest in years I think it would be difficult for Phoenix to overtake him after missing the group stages.
JMK doesn't have the runs on the board in a Kiwis jersey but has just played a key role in taking the Phins to the Top 4 and a Prelim - missing a month+ of footy has to leave Crossland disadvantaged in this head-to-head as well, especially if the Kiwis were to beat the Kangaroos in the group stage - it would be a massive call to drop Phoenix into a key role unless forced to do so by injury.
I'm not sure whether it's a 23 or a 24 man squad - after a very quick brainstorm I reckon they might take him as a backup to the above, if it's 23 he might be in trouble:
1. Kalyn Ponga
2. Ronaldo Mulitalo (Left)
3. Casey McLean (Left)
4. Matthew Timoko (Right)
5. Jamayne Isaako (Right)
6. Kodi Nikorima
7. Jahrome Hughes
8. Moses Leota
9. Jeremy Marshall-King
10. James Fisher-Harris
11. Isaiah Papali'i
12. Briton Nikora
13. Joseph Tapine
14. Brandon Smith
15. Naufahu Whyte
16. Erin Clark
17. Xavier Willison
18. Te Maire Martin
19. Charnze Nicoll-Klokstad
20. Keano Kini
21. Phoenix Crossland
22. Jack Williams
23. Leo Thompson
24. Scott Sorensen/Jordan Riki (Manuleleua/Foketi picked ahead of both but probably opt for Samoa/Tonga)
Realistically, one of those 5 reserves (#20-24) probably needs to cover the outside backs for squad balance, so Phoenix's suspension could be fatal in that respect - I'm assuming DWZ plays for Tonga otherwise I'd have him straight into the squad - Kris/Karapani aren't as enticing.