I sincerely hope this fight happens just so we won't have to listen to Paul Daley hyperbole anymore. Bottom line, to be a top fighter in the UFC now, you have to be able to deal with high level grapplers. If you aren't one yourself, you better have stellar TDD.
Daley doesn't, he has virtually no chance at all in a division filled with top notch wrestlers and grapplers, of ever cracking the top ten. If he is lucky enough to get a fight against someone like Serra or Hughes, he might inflate his ranking enough, but Fitch, Kos, Alves, GSP, etc, will all beat him easily. Hell even Hughes might beat him since Daley's ground game is so bad.
Basically his future in the UFC is someone like Chris Lytle. Lytle will never be a great fighter, but he is popular and makes a decent living as a measuring stick for up and coming fighters. Daley could do the same, he has a good chin and when he does win he gets knockouts, so thats his place in the UFC, if he wants it, in my opinion.