In 2014, Heather McCrimmon came to the National Science Museum to deal with a meteorite superbrain. To her surprise, Wolfgang Ryter joined her in fighting the superbrain.
After seemingly destroying the superbrain's body, Heather and Wolfie caught up over what they'd been doing since leaving the Doctor and reminisced about their time with him. They didn't notice the superbrain's body rebuilding. The Tenth Doctor came to the museum as part of his final reward and obliterated the superbrain, saving Heather and Wolfgang one last time. Heather and Wolfgang tried to thank him, but he left without saying a word. (COMIC: Lucky Heather)