Not really. Fire power a champion doesn't make. We've seen that many many times. It's far more mental to be a champion and we really haven't seen that and he's old enough by now it should have shown itself if it were there. And when you have to make a list of what needs to improve at this point, it's already probably a lost battle.
huge mental game, Raonic his mature beyond his years. big serve, good off the baseline, improving movement which will only get better as he fills out his physical state. his speed will never be amazing but great slam winners in the past got past that.
you are delusional if you think he will not win ONE slam at some point. the younger generations are horrible, that alone will enable him to. who do you expect to stop him? do you really think the likes of Tomic will have the will and determination in a grand slam final to beat Raonic? please