Big MCU news just struck like a bolt of lightning: Taika Waititi is returning to write and direct Thor 4. For the first time, an MCU solo franchise is receiving a fourth installment, and after Thor: Ragnarok eclipsed the previous Thor films in critical and commercial success (93% on RottenTomatoes and $854 million at the global box office), it makes sense that Marvel wants to collaborate with Waititi again.