I have news from email and social media with more news about the AA/US merger.
FROM AMERICAN: Timeline confirmed for 2015. No details about how the miles will be moved from US to AA or if it will be like the UA/CO merger where miles could be moved back and forth for a few months so you could choose which airline’s chart to use. Full details as posted on Facebook.
FROM US AIRWAYS: Increased miles to redeem US/Canada premium cabin awards (which is probably not the priority for an eco-travel blog). There is also some news for elites, please see details on US website. US does have very attractive off-peak awards between the US and South America so if you have an award in mind it’s worth redeeming before 2015.