My current situation: I have very populare site but because copyright issues I need to move to other domain. I plan to add 301 redirect to new domain but how Google will response to my action: fall serp, pr or so? Thanks.
New domain means new SERP. But you will not end up loosing as the domain is permanent redirect to the new domain rite? PageRank also will be gained back after the new updates. You will have to start it back from first