It's very simple...

>>"What that clearly says is that they planned for Fisher to return after his 5th season, not that Fisher's job was dependent on the results of his 5th season"<<

(1) They "planned" on Fisher returning.

Yes - true. I explained why.

(2) >>"not that Fisher's job was dependent on the results of his 5th season"<<

No, not true. It can mean that as well. Since those two things are NOT mutually exclusive.

Fisher's job is still dependent on the results of his 5th season. Though he has an extension in place. In other words - "extension" or not - he could still be fired after this season because of the results.

See? Simple.

sanfRAM