If indeed the conditions that led to life on Earth can be reproduced elsewhere, then yes I would say there is a decent chance that 'life' in the broadest sense of the term has arisen elsewhere. Also, as clarification, when I say 'life' I do NOT necessarily mean intelligent life.
But the problem is this; We have NO evidence one way or another. This is important, because BELIEF with a LACK of evidence is faith. Anyone who says otherwise is fooling themselves.
Now then, as for intelligent life, I'm personally inclined to think that IF life occurs with some frequency and IF these various biospheres last long enough then there MIGHT be the chance of an intelligent life form coming into being.
Once again, we have no idea whether or not life can arise elsewhere, no idea if it does, no idea what the chances are for intelligence to arise and no idea what the probabilities are of it developing language, technology, etc...
I guess I'm just kind of rambling at this point, what I mean is that with no knowledge of the variables involved it is impossible to figure if there is life elsewhere and we can bluster philosophically all day and still be no closer to knowing. I personally have faith, being that this is a belief without hard evidence, that there's a chance life has arisen elsewhere. But that's as far as I'm willing to go.
PS: The argument of 'but the universe would be boring otherwise!' means nothing. The universe doesn't give a crap if you think it's boring or not, it just is what it is.