Urahara is good but ruthless. He has no problem to sacrifice anybody (sacrificing Rukia) as long its for the greater good. Remember how Mayuri refers him during his jailer era as unpleasant?
Urahara definitely has the possibility of becoming the final antagonist or at least associated with the final antagonist but that is mostly because there is so much mystery to his character. Either Kubo is lazy and doesn't want to develop Urahara anymore or there is a strategy behind this mystery. However, he was kicked out of Soul Society.
Most individuals of this manga are ruthless or voilent or shady & etc (eccept for the main character(s)).
Urahara & co, gotei 13, arrancars, xcution consist of shady or ruthless individuals.
Isshin is just as shady as Urahara imo. WTH kinda father would permit the beat dowm of his son, keep so many secrets from him (especially till this day), etc & be ok with that? Worst father in bleach.
Ichigo is changing them & he will continue to influence them (maybe even the Royals).
---------- Post added at 09:39 PM ---------- Previous post was at 09:36 PM ----------
I don't think Urahara will be any villain, it's just his character (a character that has developed 100s of years) to be a shady SOB.
How would you explain this, then? Aizen first talks about the Hougyoku and presenting souls to it, and then about Urahara's as "also incomplete". The "also" meant there were 2 different Hougyoku, both incomplete. (One of them being the one created by Aizen and the other by Urahara.)
It's hard to tell what Urahara has planned. He's a genius, it's been said time and again. He never seems to wonder, always composed as though he alone knows of a grand event that will happen in the future...
I do predict that Urahara is readying himself for something far bigger than anything else that has happened or for that matter, been alluded too. He seems to be building a team and a powerful one at that. Tessai, Yoruichi, Issin are already perfectly loyal to him. Jinta and Ururu are being groomed to be formidable as well. I also believe that Urahara is betting on Ichigo and his friends to be loyal allies to this potential major event that I ambiguously predict.
I think he and his crew will be staying out of the Quincy war in an effort to keep his secrective presence and plans intact. We will have to wait for more revelations to predict any further!
Urahara's character has tipped the alarms in the past many times. Questions were raised against his motives. As for me, I do not think he is an evil character. Sure, he has made me suspicious numerous times. He is a genius and he may misuse or rather make use of the events but I do not see him as a bad guy. It has to be an epic deception, to deceive someone like Isshin and others.
I don't think he's bad like Aizen at all, he's willing to make certain sacrifices and break certain rules, but really this doesn't put him on a level different from most Captains. Even in Rukia's case, he was willing to sacrifice her powers as a Shinigami, but he sent Ichigo and co. to SS with the intention of saving her life (though whether that was about her life or stopping Aizen from getting his hands on the Hogyoku I can't say). What's interesting though is that Urahara seemed to have a certain understanding of Aizen. I think the reason Aizen hates Urahara is because he knows he sees things the same way he does, but refuses to act upon it the same way. Rather than trying to instigate change, Urahara complies with things as they are.
Look at the Hogyoku. Urahara devised it as a means for breaking the barrier between Hollow and Shinigami, though to what end, we don't know. But when he realised how dangerous it might be, he sealed it and hid it away. Aizen created a Hogyoku, sacrificed hundreds of people (their actual lives or just 'pieces' of their spirit, it's not clear) in order to awaken it, and when he finally did awaken it, used it to fuel a war and turn himself into a living god. They have the same capacity for vision, but they're two very different people.
But you never know. There's no denying that Urahara is shady in his own way. He might just have his own, more covert schemes for changing the world for what he and Aizen know as 'the better'.
Fact still remains that Urahara may not be as Evil as Aizen but we also can't out right say he hasn't played a huge part in some of what Aizen did, Yes okay he didn't try to take over the SK but still why make such a object in the 1st place? Why because he wanted to recreate the SK's power (which is pretty much what Hogyoku is) to what purpose we still don't have a clue but not one person in this forum can say that Urahara doesn't have his own agenda what ever that is
The official explanation was that Urahara made the Hogyoku to transcend Human and Shinigami in order to save the lives of the ex shinigamis who were hollofied by Aizen..was it not?