Complex sentence: After the credits, Jin's body is unearthed at the temple site by a crew led by Raven, it is unknown whether Jin is dead or alive though it's most likely alive since he still has his devil tattoo.
Split into simpler sentences: After the credits, Jin's body is unearthed at the temple site by a crew led by Raven. It is unknown whether Jin is dead or alive though it's implied that he is still alive due to still possessing his devil tattoo.