I think he will not reach this milestone.
Living in Portland, Oregon when this guy came up I had the chance to watch him every day and I have always admired and loved his game. Not too sure I like what he adds or detracts from the clubhouse yet there is no questioning that he is a first-ballot Hall of Fame guy and plays the game the way it should be played.
That said, I look at the skill set that got him his hits so far: eye-hand coordination and foot speed. I look at the opportunity that he got as a leadoff hitter.
First, as he ages, I do not think he gets the PAs the next 3 to 4 years that he has gotten so far. Second, as players age their eye-hand coordination wanes. Third, he is getting slower.
Ichiro has how many infield hits in his career? I will look it up after this post. The point is that I look for that number to sharply decline along with his bat getting slower and his PAs to diminish. This combination will keep him from reaching 3000.