WIth my experience of online dating, it sounds like he's no longer interested, although one of the reasons he would be uninterested is because he's busy. Or not. Even if either of you were busy, there would be some eagerness to line up a meet soon. The only other thing might be that he doesn't think you're interested because you haven't set a date or time either.

Best to just ask him. I wouldn't wait, personally. I would want someone to know I'm interested and I'd state it outright, especially since I wouldn't want to waste their time or my own. It's online dating, after all.