baggersup, There is a link to a page on the front page of ba.com with an update following yesterday's announcement.
As to whether BA will meet its promise of a 100% long haul operation at LHR, last time it under promised and over delivered. That said, I expect Unite to not waste any time in calling strike dates and they will go for the end of January to overshadow the launch of IAG. This traditionally a very quiet time for travel so some long hauls on high frequency routes could be consolidated.