Future Korin is an alternate timeline version of Korin who is mentioned in Dragon Ball Super, and who appears in the video game Dragon Ball Z: Shin Budokai - Another Road.
Dragon Ball Z
Future Korin gave Future Yajirobe a Senzu Bean when he was struck down by Future Android 18's High-Pressure Energy Wave.
Dragon Ball Super
"Future" Trunks Saga
Main article: "Future" Trunks Saga
Future Trunks mentions that Future Korin is no more, preventing him and Future Mai from having Senzu Beans to tend to their wounds.
Video game stories
Shin Budokai Another Road
Future Korin survived the attack of the Androids. However, years later, Korin Tower is attacked by Future Babidi's Fighting Puppets and Future Korin has to get away. Future Korin meets Future Trunks while the latter is on his way to West City to retrieve his Time Machine, and Future Korin gives him some Senzu Beans.