How many allied races?

Hii..

How many allied races do you guys think blizz will have this expansion for each faction? At blizzcon i know they said more "to be announced," but i don't know if that means we get 3+ alliex races this expac or if we are just doing allied races instead of just "races" from this moment fowars because blizz saves monry on models. Do you guys think we'll get more than 3 allied races for BFA? Also what does this mean for unique model races in future expacs? I personally think we'll get the 3 then maybe a 4th. With 2 more allied races per faction in the expac after BFA..

Please help..!

I didn't find the right solution from the Internet.

References:- https://us.battle.net/forums/en/wow/topic/20761807484 Digital Transformation Services Video

Thanks!