Toyota is reportedly developing next-generation combustion engines, with details emerging about a potential new 4.0-liter twin-turbo V-8. The company is also expected to release several new models in the coming years, possibly including a next-gen Corolla, a revived Celica, and a new MR2. However, it is unclear how these new engines and models will be integrated into Toyota's lineup, or how they will relate to the company's electric vehicle plans.