So, yes it's a huge possibility, and quite common I would say, as CBS bought Fender in January 1965 with the intention to dismantle the company, so they used all stock components available to build instruments.
The pots should also be from 1966 as they bought the whole remaining stock from CTS back then.
Instruments built from 1965 to 1969 can be weirdos with different years for parts, but to give them a date, it's always the youngest one that counts.
And I wonder how the seller can date the body to 1967 as, except if there's a date hand penciled, the bodies were the same?