We recently got merged with another company. Our company intranet is inside.go2.com (multi server sp 2010 farm). Say our domain is SilverForest and we have multple SP 2010 farms (Prod, QA and DEV). The domain for the company bought us is GoldForest. Now, the network and server team has been working on the AD trust. I was able to add GoldForest/Domain users to all of SharePoint's site collection. and Now both companies see each other SharePoint site. The SharePoint site will stay separated as we are in 2 different business. I just learned that they are working on Domain Integration and we are going to be under GoldForest.
What are the steps I need to take for our SharePoint 2010 environment to make sure there are not issues after the domain integration?
Will the user profile pictures stay in tack during or post domain integration?
Our current authentication is windows which will stay as is.