In the future will it be common to see 'mega fights' failing to happen?

Pac-De la Hoya a super fight? That's the biggest rip-off of the 21st century! Oscar virtually did not have anything left as Freddie Roach noted from early as the pre-fight promo. Oscar had to boot out Edwin Valero from his training camp for giving him a shiner! Many suspected ODLH hardly trained for that fight. Oscar naturally lost by retirement after being thoroughly thrashed by Pacman but he happily went to the bank with perhaps his biggest retirement check.

In fairness though, I think the fights thus far that define the current century included a few that involved Pacquiao ( vs. Marquez ), Morales ( Pacquiao, Barrera ), Mayweather ( Castillo, Cotto, Alvarez and Maidana ), Marquez ( Pacquiao series, Diaz series and Katsidis ), Corrales ( Casamayor, Castillo ) Ward ( Froch ), Lewis ( Klitschko, Tyson, Holyfield ) and Hopkins ( all his fights since Taylor 1 and 2 ).

With the Top Rank-GBP cold war thawing, hopefully, we can get to see more super fights in the coming years.

They'll happen, simply b/c money talks over everything.

Just a matter of having two very popular fighters be within the same weight range.

Yes. of course

They will start happening all the time, after Floyd, and Whladimir are done. People are tired of seeing these dominant champions not fighting the top guys.

Since 2000, we've had a few (proper superfights):

MAB v Morales

MAB-Hamed

MAB-Pacquiao

Pac-Marquez

Pac-Morales

Pac-Bradley

Pac-DeLaHoya

Pac-Hatton

Pac-Cotto

Cotto-Mayweather

Mayweather-DeLaHoya

Mayweather-Mosley

Mayweather-Marquez

Mayweather-Hatton

Mayweather-Castillo

Mayweather-Corales

Corales-Castillo

Castillo-Hatton

Hatton-Tszyu

Tszyu-Judah

DLH-Vargas

DLH-Mosley

DLH-Trinidad

DLH--Hopkins

Hopkins-Trinidad

Trinidad-Vargas

Trinidad-Mayorga

Mayorga-Forrest

Forrest-Mosley

Hopkins-Calzaghe

Calzaghe-Jones

Jones-Hopkins

Calzaghe-Lacy

Jones-Tarver

Lewis-Tyson

Lewis-Holyfield

Lewis-Klitchko

But after Lewis retired and the Klitchkos refused to fight, heavyweight had none to offer

Calzaghe cleaned out 168-175 then quit leaving these weights empty of proper champs.

Mayweather & Pacman then done the same to 122-154. But then didnt fight each other.

This all basically caused voids leaving only 1 true "super fight" left as other champs hadn't won titles from the title holders

I agree.

Mayweather had several superfights that did not happen.

Current superfights not happening include;

Quillins-Martinez, Martinez-GGG, GGG-Martinez or GGG-Quilins.

Guillermo Rigo vs Santa Cruz.

Still i'm glad some mega ffights happened like Pacquia-Bradley or Mayweather-Canelo