The engineer said this: “Powertrain is the most controversial part … because the LC250 series now comes with a turbocharged four cylinder 2.4L which is a far cry and a big change from the older LC200 which had a V8 engine”
I doubt he understands the history and development of these series.
LC250 will replace 150 series. The most popular engine is a four cylinder 2.8L Diesel which will be used on 250 series also.
Here are the ancestors of Landcruiser 250 (Light Duty/Prado).