Not sure why I'm being downvoted, but here's my reasoning:
"Apple being granted the additional rights they seek (unlikely)"
Trademark tend to be narrowly scoped to the products and services being marketed by the company.
"them then wanting to enforce their mark against this fruit company (unlikely)"
They have more to lose (reputation) than to gain.
"winning litigation (unlikely)"
There's no likelihood of confusion. Dictionary words can be trademarked, but generally not for the goods and services they describe. Fruit company has used the mark before Apple even existed. Trademark rights are based on first use, regardless of filing.
"Apple being granted the additional rights they seek (unlikely)"
Trademark tend to be narrowly scoped to the products and services being marketed by the company.
"them then wanting to enforce their mark against this fruit company (unlikely)"
They have more to lose (reputation) than to gain.
"winning litigation (unlikely)"
There's no likelihood of confusion. Dictionary words can be trademarked, but generally not for the goods and services they describe. Fruit company has used the mark before Apple even existed. Trademark rights are based on first use, regardless of filing.