Should Pac go down to 140 lbs. or even lower to fight Bradley, Valero, and etc.?

Should Pac go down to 140 lbs. or even lower to fight guys like Timothy Bradley, Devon Alexander, Edwin Valero, Humberto Soto, and etc.? But is this suppose to happen? Pac is suppose to fight FMJ provided he wins against Mosley next month. This is suppose to be the mega-fight that everyone is expecting. Or Pac can fight Mosley if he prevails over FMJ, or Pac can fight both of them...whatever. And then there is Margarito, who is trying to make a comeback after his suspension for cheating. Margarito is a name in boxing especially among Mexican and Mexican-American populations. The style matchup is also interesting. The highly stacked 140 lb. division is suppose to be a round robin match between Amir Khan, Timothy Bradley, Devon Alexander, Marcos Rene Maidana, Victor Ortiz, Paulie Malignaggi, Kendall Holt, and perhaps even Juan Manuel Marquez and Ricky Hatton if he decides to continue to fight. Amir Khan is suppose to come out as the victor after all these battles, and be the next pfp#1. The torch being handed from Pac and FMJ to Khan. At 135 lbs., Edwin Valero and Humberto Soto are in a crash course to fight one another to determine who is the man at lightweight with Valero expected to win, and to clean up the division which includes Joan Guzman, Michael Katsidis, Ali Funeka, Nate Campbell, and Juan Diaz, and be crowned perhaps also pfp#1. At Featherweight, which is a weight way too low for Pac to go back to, but I'll talk about it anyhow, Yuriorkis Gamboa and Juan Manuel Lopez are suppose to duel it out eventually and determine who is number #1 at that division with Chris John yielding his titles to any of them in the process. Isn't this how the fairytale of boxing is suppose to workout and end?