*spoilers* Yes Itachi comes back during the great ninja war due to a reanimation jutsu later in the series, though i wouldn't technically call him alive. he assists Sasuke in fighting Sage Kabuto, at this time this is as far as the series is.
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i miss him so much but itachi is actually alive again thanks to kabuto. kabuto used the reanimation jutsu and brought back itachi, deidara, sasori, nagato, and kakuzu back to life and now all of them are kabuto's salves.
After Itachi massacred the clan, Sasuke's innocence was corrupted, his ideals and personality changed severely, becoming cold, lonely, cruel, cynical, somewhat arrogant, and with the next nine years of his life devoted to killing Itachi. Although now Sasuke REGRETS killing itachi after remebering what a good brother he was.
Obito mentioned that Itachi had a lover which he killed during the massacre. Other then that nothing is known about Itachi's love life.
Itachi Uchiha did come back to life after Kabuto and Madara Uchiha allied. He is resummoned by Kabuto along with many other powerful ninja
He comes back to life when they make a wish to Porunga.