As well as the existing 3 females, the zoo will receive a male from Winnipeg who will remain in a separate on-show enclosure for 6 monthes under rabies quarantine.
Furthermore, although no date has been set, the zoo will also receive a male and female from Sakkarbaug Zoo, Gir.
Reading between the lines it sounds to me like the Gir transfer has been delayed(?) and they needed to source another male sooner in order to have one on display a.s.a.p. after it opens.
Could create problems further down the line if the Indian ones do arrive, the Winnipeg male might find himself moving again- unless the new building will have the facility to house more than a single group at London?