With the experience he have in the industry and the talent he possess, I can say that Donaire will be deadly in the lower division but the catch is that we must accept that he isn't the Filipino Flash that we used to know anymore as he's already aging but the power is still there, I don't doubt it. But yes, you are right these are just mere speculations and we should watch him first before saying that he should already retire.
If he still wants to get into fights and wants to dominate then he'll do the stepping down. But if not, he'll do whatever he takes before he retires.
Aging really matters in terms of an athletic career, especially in this type of sport that needs physical contact.
But, as of now, we don't hear a lot from him and we still need to wait for the announcement on what his next step.
It is very difficult to determine how Donaire's behavior will be for now, many are saying that he is already very old and that he cannot do things like before, that he is not at the level of a young boxer, but I think that this should not be trusted , I think it is time to also have to fear or be careful of all the experience he has, in my personal opinion, if I had to fight someone like that, I would be much more careful, because this type of boxer knows his abilities very well and They know when they can give everything, just as they know how to measure the capabilities of a boxer who is an opponent.
If Donaire really goes down to a lower weight limit , I think he will be one of the forces to be reckoned with. A lighter boxer tends to have less powerful punches, except of course for some exceptions. I believe Donaire can handle punches really well in the lighter category, plus his punch will be devastating. If he is what he is saying then I can see Donaire reigning in the 115-weight division.