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Hints that there might be? Yes. Hints that there are? No, sorry.

Semantics. Hints are hints, "could bes", not proof. You said hints, now you seem to want proof.

The biggest problem is that we have only scratched the surface, literally in the case of Mars, of the possible locations and types of life. Don't expect "proof" anytime soon, although Saturn or Jupiter could surprise me.

Or extra solar aliens could show up, which I'm not holding my breath for. Somewhat more likely be detection by SETI.

Semantics. Hints are hints, "could bes", not proof. You said hints, now you seem to want proof.

I guess there is a bit of semantics going on here. But I'd still argue that it isn't very accurate to say that there are plenty of hints that there is life beyond earth. I think it would be more accurate to say that there are plenty of hints that there might be conditions for life in other places, where some primitive life forms might reside. You mentioned Jupiter and Saturn. I assume you meant the moons. I agree there might be something found on one of them, but I can think of no logical reason to weigh more heavily on finding life, than finding no life.

Oh, and a hint would be a slight indication, which is much more than a could be. Could bes are just possibilities, and those are endless.