Maybe there will be an option to flag certain grounds for international use. Then when the said WC comes around you only play in flagged grounds from that nation.
World cups aren't always in only one nation so the lack of grounds in one nation could be bulked up by a dual host.
The problem with what your saying is over a 20 year career you would have to design 5 would cups assigning teams, grounds etc which may or may not correlate to current affairs by the time you get there, before you begin the career. I am as eager as any to find out how the career will pan out but hopefully we'll know more after premiere.