While I can't think of a reason for why Javier would be there, that doesn't mean it couldn't have happened. I didn't think Dutch would return on th e epilogue since he went off the radar after the gang fell apart, but he did. Also in regards to Javier 's price on his head here's what I'm thinking. One can argue that John shouldn't be in areas such as Blackwater since it was publicly known that he took part in the bloodiest massacre the city 's ever known and yet John no t only returned years later, but he purchased a plot of land under his real name. My reason for saying this is that I'm trying to point that reasonable thinking may not work out as well as you believe because in my experience almost nothing is beyond the realm of possibilities.