I am probably a little disconnected with the mainstream, but I am more excited for the fight now than I was before Conor/Mendes.
I personally didn't think Conor had earned the shot prior to facing Mendes, but he has now put the issue to bed. IMO he is the rightful challenger at this point. And his fight with Mendes was one of the bigger fights of the year. I would think that the exposure he gained from his performance in the interim bout would add to the excitement of the unification fight. TUFF will probably help too.
Aldo/McGregor stands to be one of, if not the biggest, fights at 155 and below that the sport has ever put together. It will be a "must watch" card for fans of the sport. And as disgusting as Werdum/Cain is, a HW title fight is a rare event in and of itself these days.
Let's hope that everyone manages to stay healthy.