This fight would do big numbers, but he'll probably out-price himself... I'd imagine he'd want $20M+ to do the fight... I think that makes sense, but at the same time, he's a decent draw at LHW still & the risk-reward may/may not be there for UFC.
Why I think it might be, is if they feel Francis is the future & can bring HW's back to the forefront of the attention sphere, they could create a star out of Francis.
All in all, I think the fans want to see it, but the fighters have much less control now with the current PPV setup as the revenue is now more on sign-ups & residual income. That said, every large fight pushes the needle for memberships which is why guys like Conor can command such a high purse. The power will continue to dwindle from the fighters as memberships go up & the UFC will be placing fights solely based on what's best for the business without fighters having control of their purse as revenues are much more consistent.
From a business perspective, this is great, from a fighters perspective, it could be good so-long as the salaries continue to increase at a strong rate (faster than other sports organizations) to catch-up to other organizations. It would be nice to see fighters get minimum contracts of 6 figures a year for entry like a rookie in MLB, NHL, NBA, etc.
The average UFC fighter only lasts 3.3 fights at this time. I believe this could increase over-time, but that's just over 1 year & far less than any other sports organization. With the lack of funds in "minor" organizations, it would be great to see fighters be able to secure a gauranteed 6-figure salary/contract for the first 3 bouts win or lose. You can't guarantee contracts as some people just shouldn't be there, injuries, drug tests, etc. but it would be nice for them to allow fighters to fight out their first 3-fight contract. You don't cut a rookie cause his first game was terrible, and even second. They need to get comfortable.
I also feel the win/loss bonuses should discontinue. It's ok to offer bonuses, but I don't think this helps the bouts at this point. In the past when the sport was less polished & you had part-time fighters in the cage, this made sense. Now, it just shows desperation & is sad with poor decisions being given out at times to certain fighters. If there's a bonus, it should not be more than 10-15%. If the fighters on the lower spectrum get paid adequately, then what they're fighting for is to have a longer career in the UFC for better pay. Not desperation to pay rent. $15,000 for a 3-4 month training camp with management, supplements, sparring partners, gym fees, etc. is sad & it's these guys who get it the worst. The highest paid fighters and champs tend to have more fixed pricing.