Untill writing of this post I think the site has retained the page rank and the in links as well.The benefit of the site is that , it has been registered in DMOZ and also in google directory has made it strong contender for the nice rank. So I can say that following principle of Google would make your site to remain the page rank as it was before the update. Some of the sites which had forged Pagerank before the update have lost and many of those who gained PR are my my Directory named as Gem Directory.
So, My another directory named as Dvoz Directory is now a PR 0 directory from PR N/A. Well to be honest , I was using some advertising for my directory which indeed helped it in gaining some back links from major forums and sites as well. Now its my turn to give them backlink from my own sites so that may be by next update they can get some increased page rank as well. So both the directories have now gained some page rank and are good in the eyes of Google as well. So I would consider to get some Blog Posts for them so that they get advertised in eyes of blogs and popular bloggers can visit those directories and link back to my directories and then , it would certainly help me in getting some revenue as well.
So stay tuned for some more updates to the page rank in near future from my blog as well as many other blogs which are discussing about the same disaster which happened to them or other bloggers or websites.