Well, the senators that you see in the poster really are just a teaser... their role in this won't be too big. This one will mostly deal with an overall picture of several different characters having twisted allegiances.
Remember on Dathomir, Rykrof downloaded some important information about the Badoo Corba... this data not only contains locations of secret terror cells, but also information on certain supporters of the terrorist movement that are alligned with the Republic.
He arrived late on Dathomir and the Badoo Corba escaped, he was shot down by a surprise Separatist force, etc - which Palpatine orchestrated. But to everyone's surprise, he has come up with important information. This information could sway some to thinking Rykrof is still useful to the Republic... for now.
This won't be one of the more action packed stories, but will be an important one in the grand scheme of things. Looking forward to posting it tonight hopefully.