Up next is Agents - Genele's doing some various cleanup work on the past prof docs while she's at it. Once she's done with Agents she'll be moving on to Perks - During this time we'll be working with the Profs on making sure that as many issues/concerns/etc. have been addressed.
After the new perk document is done, we will probably release it and the "v2" round of documents at the same time, so everyone can compare the two side-by-side - At that point we'll begin the process of 'finalizing' the design of the documents (not necessarily the numbers, mind you, as those are always changeable) with one last round of feedback from the public. At this point you'll probably start seeing changes hitting Testlive.
I doubt we'll release any 'real documents' on the pet revamp, as the changes there are mostly just tweaking/increasing/altering what they already have to make sure they fit with the current/new power curve of the game - Odds are these changes will be done in the itemization portion of the rebalancing, so they may hit TL a bit later than the nano/perk changes. Either way, what we've said on them still stands - In general better AR, better health, etc. etc.
This will all spend a healthy amount of time on Testlive to make sure that what we have actually *works* and makes sense - No interest in shipping this stuff out to Live half-baked because... yeah, that would be a disaster I think we'd all like to avoid. :P So we'll make sure things are ok there, and make tweaks and changes where needed, and then when we're ready we'll push out to Live. After that, if we still need to make any tweaks, we can and will - A good benefit of doing this is that it's allowing us to actually *access* parts of the game we haven't been able to for years, so we'll be able to more easily change and modify anything we feel needs a boost/nerf.
Bear in mind, of course, that this is all just rough estimates and ideas - This isn't a promise of exactly how it's going to go down. ;P But that's a good idea of what the outline thusfar is. =)