The man who will appear in strip one (drawn very clearly as him) is one of those in the frame now; he has entered from the left and seems to be carrying a newspaper or magazine of some sort (nothing definitive can be seen, just squiggles that indicate – apparently – writing). He is walking at a leisurely pace, seeming on the positive side of the “content” scale, just like everyone else that’s here/has been here.
Nothing about the man really makes him stick out from the crowd, which appears to have gotten a bit thinner: not much time has passed at all (obvious from the clouds, light, stragglers from frame 3, etc), there just seems to be a lull in the daytime traffic.