Reymart Gaballo might be very much underestimated by everyone. He is undefeated and he is only 25 years old, Donaire is 39. I am aware that Donaire won vs. Oubaali who was also undefeated, however, Oubaali is 35 years old with only 17 wins. Reymart has 24 wins.
When the odds are not available early, that means the fight is not really popular. This fight is popular to Filipinos as the fans know the fighters, so we cannot expect the odds to be present now since most likely just like the other non-popular fights, odds can be seen a day before the fight.
For me, the most important is to know the schedule of the fight because that assures that the fight will happen, and if that happens we can surely put our bet on this fight.
The fight will be available next month, the odds should be up by now. Well, maybe it's not so popular since Donaire is just fighting a mandatory fighter, but if he wins this fight, we should see him fight a more popular fighter and I can only think of Inoue since he is always the prospect.