I still think that both Alen and Osman are Gs.
Just consider the following scenario: The Gs come together at day 1, seeing that they got most of the strong players on their side, which is extremely likely since it's all but confirmed that the roles were handpicked. What do they do first? Look at the remaining strong players to eliminate/recruit them early on. Who do they recruit first? Osman. It's probably extremely unusual to recruit someone on day one, but on a special occasion such as this it would be an extremely smart move. He's the lawyer as well, making the subsequent ploy of today possible. They also whack Zach, an experienced player, who has most likely been given a special role. This creates confusion, buys them time and makes Preet suspicious (which doesn't necessarily mean that she's not a G though, but I wouldn't focus on her at this point).
Could be complete and utter BS, but that's what seems most likely to me at this point in time.
Also, what happened to Völler? He used to be really active in the first pages but hasn't really contributed much today, while posting in other threads continuosly. This is no allegation, just noticed it right now....