It's already the case. I plan to upgrade my old 13 with some parts from the pro next year. I won't have to pay a full machine for a new screen, battery or touchpad.
At the price of the RAM (I never fill my 32GB, why would I buy any?), not buying a new machine basically pays for the first laptop premium.
Next upgrade, I'll be saving money.
And giving money to an ecosystem I like, creating a stronger competitor with those values.
Love it.