At the end of BBS, Ven's heart fused into Sora. Ten years later or so, Sora had a nobody created, who we know as being Roxas. Now, let's look at the other nobodies. They look EXACTLY like their counterparts, more or less. Roxas does not. At the start of 358/2 Days, Axel asks Roxas if he's sure that he doesn't have a heart, and Roxas says that he doesn't know for sure.
This is what I'm thinking. Roxas is a clone of Ven made from the heart Ven gave to Sora, but without any memories. Further evidence could be that he is a "special" nobody, and he seemed to be able to have emotions, like crying at the end of 358/2 Days after Xion died.
At the end of BBS, Ven's heart fused into Sora. Ten years later or so, Sora had a nobody created, who we know as being Roxas. Now, let's look at the other nobodies. They look EXACTLY like their counterparts, more or less. Roxas does not. At the start of 358/2 Days, Axel asks Roxas if he's sure that he doesn't have a heart, and Roxas says that he doesn't know for sure.
This is what I'm thinking. Roxas is a clone of Ven made from the heart Ven gave to Sora, but without any memories. Further evidence could be that he is a "special" nobody, and he seemed to be able to have emotions, like crying at the end of 358/2 Days after Xion died.
Either that, or he's truly Ven's nobody.