I tend to think of the general Shadow Broker succession operates like the Dread Pirate Roberts succession, where the current guy stockpiles his loot, and, when he wants to get out, cuts out the key bits of info he doesn't want anyone finding out from anywhere, and leaves his apprentice with the rest. Personally, I think the Benefactor is the Shadow Broker before the Yahg, and, having discovered that the Reapers are coming and has decided to take his retirement in another galaxy.
TIM is another good option, especially if he wrote of the MW for now, left a clone in his place, and went to ensue human dominance in Andromeda. There are little things, such as the tablet with sensor logs in the prologue and Tann, which make me think that the Initiative was intentionally sabotaged even before it arrived and hit the Scourge and Kett. Certainly by the end of ME:A humans are in a dominant position among the MW colonists.
There are a bunch of other Benefactor ideas and discussion in other threads if you check out the links in the Collected Ideas and Suggestions at the top of the page
1. I personally totally don't feel that TIM is the one to look at, mainly because to much money spent on other race's.. Just is not his MO.
2. The Geth were not truly elusive ( they had tried to stay in area's away from Organics, The Old machines were the reason for the Geth Heretics return ), they had become a split ( until Shepard United them, or re programed the Heretic's or killed them ) , some believing in the Old machines as there God, and the other half, denying that, and trying to find a way to fix the relationship with the Quarian's, and also perhaps to save themselves from the Old machine's ( transferring there consensus to the sam's of every initiative ship would have been a sure fire way to escape the old machine's ).
They would have known that the Old machines were coming for sure. They also knew the Old machines did not like them, and looked down on them. This would have been a very good reason for them to ally with the other races, but of course would have had to do so in secret.
Knowing that and AI would be symbiotically united with an organic, would have been a harmony they would have been very happy with. Existing as equal's.
EDIT >> The killing of Garson would make perfect sense, as she was trying to expose who the benefactor was, and if they were found to be involved, all out riot, would have been been the result from the Organic's, and The Sam unit's would have been destroyed along with the entire pathfinder Initiative. <<<End Of Edit
( This also falls into line with much of what it has seemed, that Bioware has been trying to push, in the Green colored ending of ME3, The writers seem to be hung up on this cybernetic merging of Man, and Machine. )
Sam has a personality that is very much like Legion's personality, for me the Geth make the most sense Alex even seemed to based Much of his research from the Quarian's Geth creation.
3. The shadow broker could fit in nicely, in some ways with the time line, as when Liara takes over we are led to believe the creature she took over was there Killer, but what if they were not dead, but in a Cryo pod headed for Andromeda, and had given what was left of there information gathering service to the Creatures control, who appeared to be in charge.
I do not totally rule out the Shadow broker, but I still see the Geth AI intelligence as a better choice, and more logical or sensible to me anyway.
Personally, I don't think the Geth are the Benefactor for the same reason you think TIM isn't: the other races. The Geth may have wanted to keep the Quarians, one of the smaller groups in the Initiative & a possible failure to launch, alive, but they had no reason to send the others, especially as no one but a few renegade humans were trying to support AI.
As for TIM, the Benefactor just made the project feasible. before launch every major shady outfit in the galaxy had gotten involved, undoubtedly ensuring the participation of their races in this venture. Nevertheless, the human ark was the only Initiative vessel to survive a Scourge crash (and a planetary crash landing) with minimal damage and few, if any, fatalities. In addition, due to circumstances not entirely out of the Benefactor's control, humanity has total control over the most powerful alien artifact in Helios and dominates the Initiative's outposts, while the Turians and Asari have lost large portions of their populations and the Salariens have been slaughtered so much that their racial sustainability is in question.
Still, you present some good points. I would love to see your views on some of the other alternatives that people have suggested for the Benefactor.
