tedster - 7:01 pm on Apr 21, 2011 (gmt 0)
Reversing the direction of a domain 301 can be a challenging step to take - you're wise to be approaching it so systematically. Two weeks does sound like enough time to me.
About using the change of address tool, I'd say as soon as the content is live at the new address. Same thing for the Google News account. However, I would make sure any robots.txt disallows, meta noindex tags or x-robot directives were all changed to allow crawling BEFORE notifying either WMT or Google News.