I would update - but not as you suggested.
Go every 40 years. 1900, 1940, 1980, and 2020. The middle two scenes can be somehow blended to create 1940. The existing final scene can be dialed back to 1980 with the debut of home video games, an Apple home computer, etc.. Then create a modern scene with maybe a Tesla home battery, a phone controlling much of the house, Alexa or something similar, etc.
Given the way Siri responds half the time, they can still keep the oven scene.
Go every 40 years. 1900, 1940, 1980, and 2020. The middle two scenes can be somehow blended to create 1940. The existing final scene can be dialed back to 1980 with the debut of home video games, an Apple home computer, etc.. Then create a modern scene with maybe a Tesla home battery, a phone controlling much of the house, Alexa or something similar, etc.
Given the way Siri responds half the time, they can still keep the oven scene.