Changes in MoP

Hi
Is there any documentation on how the API might be changing with MoP? Account-shared achievements, pets, and the like - how will this affect the Armory API? Will the data simply be replicated against each character, or will there be a way to extract a single bundle of information for a Battle.net account, and link the characters to it?

I'm assuming that due to the potential risks around publicly linking characters to accounts, that it would be the former - where the data is simply visible on all characters.

The reason I am mainly asking is I'm writing some pages that use this data currently, for our guild website. I am hoping to have some informative areas that show how characters and the guild are progressing in the first few weeks, including who got to 90 first and all who is closest to next ding. If the API changes dramatically though, this will likely all break - and I'll be forced to decide between fixing the code and joining the race to 90 with my guildmates. I know the code would come an easy second btw :)

Also - if it is changing, will there be a test area we can use to extract sample data to take a look?

Thanks