Yes, the research paper I linked goes into specifics for just the country of South Korea:
In South Korea, the #contributors and #edits to OSM per day both increased more than 10-fold immediately following the launch of Pokémon GO (Figure 1). In the two weeks prior to the game’s release, the average #contributors was 15 and the average #edits was 4,028. In comparison, in the week following release, the average #contributors (584) was 40-times higher and the average #edits (70,345) was 17-times higher. However, both #contributors and #edits returned to more typical levels after around 1½ months. One explanation for this drop-off is that the new contributors had finished mapping the locations where they frequently played the game.
A similar spike in the number of contributors and edits can be observed at a worldwide scale.
I can guarantee you that at least a decent number of them stuck around to continue adding on to the map even years later.