The 28-year-old was placed in an artificial coma in August after being found in a confused state at home by his wife. He underwent several surgeries to treat a suspected head injury, and paid tribute to the medical staff who worked on him in a New Year's message posted on his Facebook page.
Ide wrote: “The doctors, intensive care nurses, nurses, all services which where needed during my stays in the hospital, recovery doctors and nurses, thank you to all of you for watching after me and taking me back again.
“Thank you to the doctors for their unbelievable work. I still can’t believe how they were able to manage the surgeries. I don't know how to thank everyone, you are one group of unbelievable people.
“I want to wish everybody a Happy New Year and a great 2020. We will try to make it great again and be stronger than ever.”
Ide has only raced sporadically since his breakthrough triumph, driving a WRT-run Audi R8 LMS GT3, contesting his home round of the World Rallycross Championship at Spa in an Audi S1 last year.
He shared for most of the 2016 Sprint Cup season with Christopher Mies, but a clash between that year's Blancpain Sprint finale in Barcelona and the ADAC GT Masters – in which Mies was also a title contender – meant Ide contested the final round with Robin Frijns and was crowned a solo champion.