Each generation of writers leads its age for a few centuries — there is no permanent summit.
Tips
history
From Zhao Yi's (赵翼, Qing dynasty) 《论诗五首》其二: 李杜诗篇万口传,至今已觉不新鲜。江山代有才人出,各领风骚数百年 — 'The poems of Li and Du are on ten thousand mouths; by now we feel they are no longer fresh. Age after age the rivers and mountains send forth talents, each leading the literary scene for several hundred years.' A famously sharp Qing reassessment of the Tang canon.
usage
Almost always cited with its setup 江山代有才人出. 风骚 literally = 风 (the Airs of the 诗经) + 骚 (the 离骚) — together, a metonym for literature and poetry at the highest level.