Well. The summary doesn't actually allow me to evaluate this easily, so I suppose I'm condemned to reading through the OP, follow-up posts, and online info; how vile.
I don't love the solutions presented by the OP. Either we take them as they are suggested by these media tidbits, as different versions (or fake versions) of a character, none so distinct as to be worthy of note over the others, or we just handwave the ordeal as being too complicated and composite them, as is your proposal. I think both options are pretty bad. Having read through the follow-up discussion, I maintain that it is very, very, very far from being a concrete thing, with a substantial amount of contextual information that makes it not only hazy, but downright unplausible, that these are all intended to be canon to each other.
In the end, I will still begrudgingly accept this as an extreme edge-case. I think the franchise gives ample evidence to say that these are not likely to be the same canons/same characters, and rather just flirts with nostalgia and references (a cynical part of me demands that I mention capitalistic greed as the apparent driving force behind this). Still, I accept that it is probably more harm than good to try and separate them/keep them separated. It sucks but it is what it is.
I wanted to ask, by the way. Insofar as I can tell, the profile is already a "composite", in that it tracks information from many disparate bits of media. What precisely is not currently included in the profile?