This is what showtime has planned as for the schedule
Showtime will broadcast the IBF heavyweight title bout between new champion Charles Martin and 2012 Olympic gold medalist Anthony Joshua on April 9 in London. Then, on a date still to be determined but likely to be in May from Russia, Deontay Wilder will put his WBC belt on the line against top challenger Alexander Povetkin. - EDIT: They are looking at 21st May
Stephen Espinoza, Showtime Sports' executive vice president and general manager, also announced that the highly anticipated welterweight bout between Keith Thurman and Shawn Porter will be held June 25 on CBS.
In a surprise, Espinoza announced that Leo Santa Cruz is expected defend his WBA featherweight title against unbeaten Carl Frampton, the IBF/WBA super bantamweight champion who is coming off a big win over Scott Quigg.
so it seems shawn porter vs keith thurman will be back on 26th june.
Berto vs Ortiz 2 - 30/4/2016 (I didn't think berto deserved to fight mayweather based on his performance against lopez, but with victor ortiz has gone down alot more, I think berto has the skills but if victor can get back then he may stand a chance)