Replace links from aged web 2.0 properties to new site

Few months ago one of my websites was hit by panda and after probably by penguin. I received that Unnatural Links Warning in Google Webmaster Tools and my site was lost. I used Authority Link Network, UAW and few other similar networks that were hit by google. I tried for 2 months to recover using quality links,high pr,keyword diversity, social signs etc Didn't worked.


So I start over with a new site(same niche,same keyword). I have a lot of web 2.0 properties and wiki pages that I used for tier1 on my old site. Those are blasted with blog comments, social bookmarks etc. Each of this web 2.0 are having few hundred backlinks and about 60-80 seomoz page authority even if they are having not unique content (spuned). Now I want to edit those properties and replace the links from my old site with the links from my new site. Of course using more keyword diversity and generic keywords.


Is this safe ?


Also, I'm thinking to put unique content on those web 2.0 but I don't know if it's not kind of useless to do that considering this properties are already having a big page and domain authority rank(according to seomoz). Not that this are aged web 2.0 and wiki from 2011 and early 2012.


What do you suggest me to do ?

Thanks

Yes that is more effective! Google loves now unique contents. you just edit your blog and put there new content, don't put there any link first time. Try to make continue to one post every month there .After 4 or 5 months later you just edit and put one link each property. if you have many sites then use to target different site links there in each story. Also make some youtube videos and put on the web 2.0 post as it look natural. use some picture also , but before put the picture change the picture name in your targeting keywords and use title tag also. i challenge you return very soon. If you need further details please feel free PM me.
thx

I would not do it and for two reasons.

1. It will be obvious that those links are unnatural if you switch them over to your new site.
2. The manual penalty will expire at some point. If you trash the links to it now, it will not have a full recovery when the penalty expires.

Treat your new site independently. If all works out well, you will be able to rank both of them.

PS: See my post about penalties here for more info. Good luck