Mob Psycho 100 concluded its narrative arc with the finale of Season 3, adapting the entirety of the original manga. There are currently no ongoing updates or un-dubbed episodes left for the mainline series. The story of Shigeo Kageyama has reached its definitive, beautifully animated conclusion.
The updated dub actually restores some of the edgier jokes that were trimmed in the original 2016 broadcast dub. For example: