* Le printemps ne reviendra jamais. (Spring will never return.) - This sentence implies a sense of finality, perhaps referring to a lost time or a feeling that won't return.
* Je n'ai jamais vu un printemps aussi beau. (I've never seen a spring as beautiful as this one.) - This sentence expresses admiration for the beauty of the current spring.
* On n'oublie jamais le premier printemps d'amour. (One never forgets the first spring of love.) - This sentence is more poetic and speaks to the lasting impression of a first love.
* Il n'y a jamais eu de printemps aussi long. (There has never been a spring this long.) - This sentence points out an unusual aspect of the current spring.
You can choose the sentence that best fits the context and sentiment you want to express.