Complex sentence: Prince Edward Island were set to participate after missing out in 2009, but following a series of events including pulling out of contention for hosting the 2013 edition, the Island withdrew from all future editions of the Island Games and resigned from the International Island Games Association.
Split into simpler sentences: Prince Edward Island were set to participate after missing out in 2009. But following a series of events including pulling out of the running of hosting the 2013 edition, the Island withdrew from these games and resigned from the International Island Games Association.