we know Ifrit is one of the 4 in but will there be others included and if so who?

-shiva
-bahamut
-ramuh
-leviathon
-odin
-carbuncle
-pandemona
-anima
-fenrir
-quezacotl
-diablos
-valefor
-phoenix
-arc
-other

sorry i didnt poss all summons...not enough room
thanks