"I think it's doubtful that Jango reported to or even knew about Sidious' plan for the Star Wars Universe. I think being a bounty hunter he was on a 'need to know' basis and he probably didn't 'need to know' who Sidious was."
I agree. bounty Hunters vwere at the lower pecking level in the scheme of things so he would not have known about the sidious plan. That is my 2 cents worth anyway