According to one news report, Vollmer was splitting series w/ Light until Kaczur went down.
But yeah. I wouldn't be surprised to see Light/Vollmer as the starting LT/RT. And I'd predict Kaczur would implicitly back up both positions, with Vollmer switching left if anything happened to Light.
A year later we might see Vollmer/Kaczur, which underscores why burdening Vollmer with preparing to play on both sides could be the best way to go.