User blog comment:AYET/AYET Chapter 787 Prediction/@comment-24769684-20150518111401/@comment-4754162-20150521014017

Kaido, about Issho's interest that you mentioned there, I beg to differ. From what I observed, among the main characters of the current arc, Issho is the one who is in a really awkward position. He could not have a direct confrontation with Doflamingo because :

1) as admiral of the Marines, he is bound to the military alliance with the Shichibukai faction

2) he should be well aware the Yonko behind his back

3) Doflamingo is currently "exterminating" a bunch of highly wanted pirates, which is in line with the objectives of the Marines (specifically Sakazuki)

Yet, with a compassion heart, he is angered by what he have "seen" as tyrannical rule over Dressrosa as well as his dealings in the underworld via Joker alias. Given a different positioning between the two, I believe he would not hesitate to challenge Doflamingo to arrest him.

Also bear in mind that despite not being said but the birdcage will also indirectly kill him and his Marines as well as innocent civvies, which he has been shown to be angry about it already.

Which is why he made a gamble in Luffy (he did mention this, didn't he?) as the Strawhat is not bound to any string of rules and does stand a valid chance of challenging Doflamingo. Yet he could not be seen (both by the public and by Doflamingo himself) as directly assisting the future Pirate King in taking down the Heavenly Demon.

In my prediction above, Luffy is heavily injured (a direct reference to his impale by Croc during his arc, since many said Dressrosa is actually a repeat of the Arabasta arc ^_^) while Doflamingo is still fit to fight. Sabo wanted to take on Doflamingo but that leaves Burgess open to attack Luffy for his ability. I think from Issho's perspective, he welcomes Sabo's assistance but could not risk to have Luffy killed in a side match, hence the best solution would be a barrier to exclude Sabo and Burgess from the main fight. That is my basis of his stance at the moment.

And just in case, I don't think Issho will join the fight unless he has a way to take Doflamingo down for good without the knowledge of others.

Who knows Oda will pull a fog to blind everyone, then Luffy went down for the count (unconscious), Issho directly attacked Doflamingo and ended the fight without Doflamingo being able to tell about the "betrayal" (either he is killed or say... permanently muted to reference his late brother) and finally Issho cooked up a story blaming Luffy for Doflamingo downfall (but does allow Luffy to escape as a return favor), hence increasing Luffy's bounty even higher.