It's not fair, it continues a logjam that diminishes a division...but I'ma just look at this from a strategic stand point as far as planning for the future.
FW Division: So Conor's still delaying. I wouldn't have Aldo wait. Aldo vs Holloway is a match to make, it'll establish the winner as a legitimate FW contender by either letting Aldo string back to back wins over dominant fighters in the division or giving Holloway a win over an elite opponent. That would help sell either guy vs Conor next to fans who disregard Aldo for the KO loss or Max for no wins over stars. With Franky vs Stephens and Lamas coming off a loss, that'd leave Pettis vs Cub as an option to start setting up the next contender also though I'd be cool with Pettis vs Barao too just because it buys Pettis time to adjust to the weight cut and has some intrigue (sort of).
LW: Khabib got next obviously imo. Ferguson vs RDA was the rumor I'd heard which is cool to start lining up another contender behind that, but I don't think either fighter would want to wait. Since you've got Conor vs Eddie which oughtta be huge; the best way to squeeze Nate into that picture is to line him up against the winner of Ferguson/RDA (potentially a rematch but he was hurt for the first RDA fight). On the outside looking in, you've got Edson Barboza. I'd probably try to get him a fight with Will Brooks (assuming he wins). So winner of Conor/Eddie/Khabib faces winner of RDA/Ferguson/Nate while Edson/Brooks establishing a guy who could break in.