nothing. a lack of existence more porfound than the deepest sleep. your mind, your identity, everything you thought and did in your life is gone. you go nowhere, you feel nothing, you think nothing. you will only be as real as other peoples memories of you and soon, they will die too. your person, your character and your imprints will fade away into obscurity with every passing year.
no reincarnation, no great reward.
insects and bacretria consume the hard parts of your body then your bones become fossilized eventually or turn to dust. (if you werent cremated).
sun will probably grow to a thousand times its mass (as its expected) and consume the earth entirely before collapsing in unto itself, obliterating everything you ever came to know and ever will know. no point in anything, no greater purpose.
SO GO FUCK BITCHES, YOUNG KID!!!!!!