Die-hard fans say "yes" but 2049 begs to differ... [SPOILER ALERT] Its glaringly obvious that Blade Runner teases at Deckard being a replicant. At the beginning of the movie, we learn, as well

"They don't advertise for killers in the newspaper. That was my profession. Ex-cop. Ex-blade runner. Ex-killer." ~ Rick Deckard Pairing him with Roy 'Tears in Rain' Batty. Stay tuned.

When the Directors Cut first came out it opened up the question of Deckard being a replicant. It went back and forth for a while before Ridley Scott came clean in an interview with journalist Mark Kermode