If you have a site that has been truly 'hit hard' by either Google Panda or Penguin then decide to open a new domain and redirect all requests from site A to site B then the penalty can pass, frankly anyone suggesting otherwise has not felt the full wrath of Penguin or Panda and in fact the likelihood is that they have been hit by the everyday algorithms.
This may not be instant and can take several months to happen, I have first hand experience. If Google associates yourselves with the new site with old it only makes sense that penalties are passed otherwise everyone would be just buying new domains and redirecting, Google doesn't want this.
So you have many choices:
Take down the old domain and move content to new domain. Do not tell Google you've moved, do not redirect and so on... It's time to start again but with the content you already have.
You leave the old domain with the content it has on it, you start a new domain with brand new content and you operate two sites. This way at some point your original domain may come back, Matt Cutts has said a few times that penalties degree overtime, question is how long this takes, no one knows and many are still effected. But if it does work say in 1-5 years time you may have 2 well ranking sites.
It's worth mentioning that even after people have removed links these links a lot of sites still don't come back, in fact its estimated that only 1% actually get their rankings back. The biggest issue people have is identifing how they been hit. There is many times such as manual and disavow tool does work well with reconsidersation requests, but if its an automatic slap with no notification then likihood even removing the links won't help... Worth checking out: http://www.seowizz.net/2012/10/the-disavow-tool-works-real-sites-real-recoveries.html
As you can see the 301 works temporary and then drops off.... a site that has been hit hard by a Penguin update is hard to come back from even when 301ing... Otherwise this Google update would not work if people could just setup shop after being smacked down and passing the full weight from the original site, it is also worth mentioning that 301 never retains the full weight of the original page as well.
- Hungry Piranha
- Blackhat World