Talking 50-over cricket.
Many say the 15-man squad chosen for the Netherlands ODIs will be our WC squad baring in mind Keshav Maharaj's injury & Bjorn Fortuin coming in.
Quinton de Kock, Temba Bavuma, Rassie van der Dussen, Aiden Markram, Heinrich Klaasen, Dave Miller, Reeza Hendricks
Marco Jansen, Wayne Parnell
Kagiso Rabada, Anrich Nortje, Lungi Ngidi, Sisanda Magala
Bjorn Fortuin, Tabraiz Shamsi
All players are 30+ bar Markram (29), Rabada (28), Ngidi (27), Jansen (23) this year so it will have enough experience of sub-continent conditions. Plus likely a last WC for a number of those over 30.
Only real doubts to be picked being vd Dussen, Hendricks, Parnell, Magala, Fortuin & Shamsi (who really has been poor for a year at least).
Back-ups?
Tony de Zorzi, Ryan Rickelton, Jordan Hermann, Matt Breetzke, Tristan Stubbs, Dewald Brevis, Donovan Ferreira
Wiaan Mulder, Andile Phehlukwayo
George Linde, Senuran Muthusamy
Gerald Coetzee, Eathan Bosch, Lizaad Williams
Outside of those for the last spot you probably looking for impact seamer all-rounder in Evan Jones, a leg-spinner which is too soon for Caleb Seleka but has good potential & maybe another left-armer/extreme speed in Nandre Burger.