It was formally announced that Yuji Okabayashi will be defending the World Strong belt against the "Ikkitosen ~strong climb~" winner Shuji Ishikawa on 5/5 in Yokohama. This match joins the previously announced Deathmatch title defense.
This match will indeed be a rematch from the Ikkitosen as Ishikawa claimed a win over the reigning champion during the tournament. As well as a rematch from their title match back in February 2015 when Ishikawa defeated Okabayashi to capture the belt.
Below is the announced event card at this time.
BJW "ENDLESS SURVIVOR", 5/5/2016 [Thu] 15:00 @ Yokohama Cultural Gymnasium
(-) BJW World Strong Heavyweight Championship Match: [7th Champion] Yuji Okabayashi vs. [Challenger] Shuji Ishikawa
~ 3rd title defense.
(-) BJW Deathmatch Heavyweight Championship Match: [32nd Champion] Ryuji Ito vs. [Challenger] Masaya Takahashi
~ 5th title defense.