Meiji-Jingu 100th Anniversary

Coming to Japan for the fourth time this summer. Have been to a few Swallows games before and wanted to go again. Unfortunately, the main weekend I have available in Tokyo coincides with the 100th anniversary celebration for the stadium (June 5-7). I see that several waves of presales will happen for this special weekend series before the remainder goes on sale for the general public.

Is there any chance at all some tickets will be left for general purchase after presales are over? Trying to game plan as best I can. Thanks for any input!