It has been a dream for everyone to see Messi and C. Ronaldo play for same team. This unbelievable dream is going to be true. Organizers are looking for a new version of game for replacement of Community Shield, which is played between League winners and FA cup winners. It was started from 19th century and still played. According to reports they say, it has been old and boring so we need a new, exciting and money making match. In replacement of FA community shield they could bring new match called "Premier League All Star Weekend" which would rather be more money making and exciting.  

Hence, there are several options for this game, these lists are potential options.
England vs Premier League champions

Premier League Champions Vs La Liga/ Sere - A / Bundesliga champion

Premier League english players vs PLFP (foreign)
andr more on