Personally, I don't think CO will be offering too many "gifts" up to the next level this year with all the double EQMs they offered. That's just my opinion, though, not based upon any facts.
Too bad it wasn't an involuntary re-route due to weather or mechanical issues, then you could have asked for the original route credit... well, nothing is stopping you from asking for anything, but I think you'd have had a decent leg to stand on if you didn't volunteer (and pay) for the change. Maybe you'll have to take a last minute trip somewhere or can take Amtrak to get your necessary miles?