please use this thread for further comments and suggestions to this event, which can be found here: http://eso.gaiscioch.com/events/2837/.
for us to do this we must have 4 minimum. i am not clear yet on how raid friendly IC is yet, will be useful to find that out =)
make sure you update your PTS client. the update this week alone was over 7 gigs...
create an EP vr 16 toon. expect to spend 15-30mins setting up the character. you will have > 250 sp and 300 cp to allocate and armor to choose. it will land you in Mournhold... and all quests reset. which looks like that means you have no access to DC or AD unless you want to do the main quest.
links of interest i have found so far:
http://www.twitch.tv/zenimaxonlinestudios/v/12594801 the first 5 mins is shots from around the world, after that the devs play around in IC sewers.
recent patch notes
http://forums.elderscrollsonline.com/en/discussion/200571/pts-patch-notes-v2-1#latest
http://forums.elderscrollsonline.com/en/discussion/210782/pts-patch-notes-v2-1-3
1 month old review/comments by deltia about patch notes
http://deltiasgaming.com/2015/07/28/eso-imperial-city-patch-notes-breakdown/
deltia also has a breakdown of the armor sets... may not be totally current:
http://deltiasgaming.com/2015/08/01/eso-imperial-city-new-armor-sets/