Inoue has a very similar build to Pacquiao and could easily move up to 135 imo but do you think a megafight between him and Loma at 126 would be a possibility and if so, who would you favour?
I think he totally can, he probably could make 126 if he really wanted to. 135lb is not his natural weight and you can see it, Linares is by no means a big lightweight and he made Loma look quite small. He's done it before anyway, he fought at Olympics and WSB at 135 (also was quite outsized in many of his fights), came to pros as 126. I think 130 is probably his perfect weight class.
Yeah but he can still dehydrate to make weight, he doesn't need to lose fat. Also he didn't look like he gained any mass either in that fight from his 130 days. I'd venture to guess that he was ~138-140 on fight night, so losing 8-10 lbs? Very doable.
As for Inoue-Lomachenko fight, meh, Lomachenko would get literally 0 credit for this and I think the size disparity is too much. Don't particularly want to see it right now. Maybe in a few years if Inoue goes on some Pac level streak.