If Interstellar 2 is ever made, this is how it should go down. After Cooper leaves the station, he makes his way towards the wormhole, he enters it, and loses a landing leg. He shrugs it off and continues towards Gargantua. He has flashbacks of the many events in the system, which distracts him, and makes him freak out. It's been 4-8 months at this point, and his life support decreases. TARS suggests that he cuts down on his rations, but Cooper insists. After a close pass of Gargantua to get ramped up to Pantagruel. He doesn't know that due to the lack of shielding on the Ranger, he was exposed to cancerous amounts of radiation. At about Mann's orbit, TARS finds out that Cooper has cancer, but he doesn't tell Cooper for unknown reasons. As he nears Pantagruel, the cancer starts to affect him drastically. The radiation from the star makes the cancer even worse, and due to low life support, Cooper nears death. 5 years after leaving the station, and closing in on Edmund's (now Brand's), Cooper dies due to cancer. TARS lands at Brand's habitat, and wakes her up. After an emotional reunion, and TARS telling her about Cooper, Brand becomes depressed and kills herself. TARS and CASE now manage the colony, and 20 years later, a colony of 300 people start setting up humanity's new home. So, what do you think? I made this up on the spot, so it's not the BEST, but I think it would make a great sequel should anyone do one.