Im hoping for him to fight much more popular boxers like The tank or manny pacquiao before retiring. It would be a waste if he just retire like that. Especially when manny is looking for opponents right now, if ever they fight it would go down in history as one of the best top boxers of the world competiting against each other.
Like you said, this fight is easy. So its better to pick fighters at his level.
Loma vs Pacman won't happen IMO because Loma is fighting
3 2 division south of 147lbs which Manny is campaigning and this time in their career i think catch weight is not advisable.
Loma vs Davis or Loma vs Garcia would be explosive but Loma needs to focus first on Lopez and not take him for granted. In boxing, it would be stupid to think that you are going to an easy fight as there's no such thing as an easy fight.
This is one fantasy fights, Loma vs Pacman, not in welter but in the 130-135 lbs division.

If ever Loma gets past Lopez here, I would like to see him against Davis. Loma is no stranger to fast hands fighter, he destroys Gary Russell Jr in his prime, both has speed. So Loma can adjust as well regardless on who he is going to face, including taller and more defensive figther.