Vegeta pauses in thought of that all, turning it over in his head. "Are you meaning because you will forget all that we did while we were here? Or that they would just erase those who had interacted with us back in our own universes?" It was... not something Vegeta had considered before, and it certainly raises a lot of concerns.

Vegeta has no clue what happened to his world, he had assumed it had been 'on pause' during this time in Verens, but he has no idea how this all worked with him first being taken there, then here to the train. If it wasn't though, if it was like what those who had gone back had discovered... Vegeta has to wonder if there's an Earth for him and Bulma to go back to.