Given that wireless N routers have been around for two years now, you'd be forgiven for thinking the 802.11n standard was set in stone a longass time ago. Not true! It'll be finalised by September, according to the chairman of the IEEE 802.15 working group on Personal Area Networks. Which doesn't mean a whole lot except a warm fuzzy feeling, since your wireless N routers will keep working like always.
Interesting tidbit, they've run out of letters to stick onto 802.11 for new wireless standards, so they'll be confusingly called things like 802.11ac. [PC Mag]