Wow, I really didn't think he'd drive again. There was talk last week that he wasn't even interested in returning as team consultant next year, like he was losing interest.
Still, he probably had practically no choice in this case, Ferrari needed him, and likely dangled a huge bonus in front of him to get him to agree.
Next year's Ferrari team will probably look very different from this year's, and least as far as the driver lineup is concerned. Alonso & Kubica maybe?