Gotta say, if you read the OPs original post closely, you might deduce that at best he has a CJO. If the OP can get his foot on the property within say the next six months or so I'd say he's in good shape to get to ORD quickly like you say.

More likely, he is working towards getting hired at a major and hasn't even applied yet (his profile is new and says he's a CRJ right seater). So, if he isn't on property by the time the music stops again he may be waiting for a while to get to ORD, which is what I wanted to warn him about on my first post here. Even if the economy keeps on going, I also wanted to warn him that his seniority would only improve slowly until the terminals are done. If that is okay by him great, hopefully he only actually encounters upside from that possibility (a new contract which grows mainline and throttles RJs might be just the ticket).

Long term, if he gets hired near when the new terminals are finished he should be in good shape with much better growth and seniority progression. Yes, as you like to point out, things can change.

On a side note - "zero evidence"? Wow, just wow.