Not for quite a while. TSMC is having some major problems with 32nm yeilds, so ATI delayed the whole 'northern islands' (hd 6000) architecture and will be creating a new 40nm architecture, dubbed 'southern islands.' This will e a refresh to the HD 5000 series afaik
. Not a ton is known about it, but speculation puts the refresh in December and HD 6000 in Q3 2011.