Not sure, it seems like he has at least enough money for a 3rd party candidate. I think he'll at least wait and give it shot to participate in the debates.
That said, I hope not. Regardless of the outcome, I think it's better for the winner to come as close to 50% or over that mark as possible. Still, I have my doubts the dude gets more than 3-4% at very best. Around 2% seems more realistic.
I think that's too bearish on him. Trump/Biden might be more unpopular than Trump/Clinton. Gary Johnson was attached a party with an unpopular ideology and also had lower name recognition and he got 3.3%. Kennedy is obviously a Kennedy and although he has some crank views he is largely running as a populist centrist. He is also better funded.
I think 6% is a reasonable estimate and 3% is around the floor.