Your original statement doesn't make sense to us. When you say you "declined the offer", we think you turned them down completely.
So, did you turn them down, or were you OFFERED more than one class date and just deferred your class date further out?
I agree that if they offered you a class date and you declined, unless you were SPECIFICALLY TOLD you could come to a later class date, you probably screwed yourself out of a job.
Back to your original question, you didn't tell us where you wanted to be finally for the remainder of your career.
If you want to fly heavy metal international for the rest of your career, then why did you need more turbine PIC? CX isn't going anywhere, you'll eventually upgrade, and get all the turbine PIC you want.
If you want to fly for a major here stateside, you're in a good position to simply fly another 2 1/2 MONTHS at your current regional, finish that 1,000 PIC mark, then start putting the applications out. If you have some good contacts, you should be able to get into that major in the next 2 years.
Lastly, for what people were saying earlier, Cathay doesn't hire direct-entry F/O's on the passenger side. They only hire directly into the F/O seat for the U.S. Freighter operation here in the states, then you have to work there for a number of years before you can transfer into the pax side, then you have to agree to be based overseas for your first year or so of pax operation (unless that's changed in the last year since I interviewed).
I interviewed at the same time I interviewed at AirTran, was offered the job, and passed on CX in favor or AirTran, simply because I have a wife and kids and don't want to be gone that long at a time with that few days off per month. I like my 3 days on, 4 days off trip rotation with a 50 minute commute into domicile.
Hard decision, as I like the money and would LOVE to fly the whale, but it's not worth it if I'm gone that long at a time. Just my .02 cents.