Bioware released a FAQ regarding all questions that fans from all platforms have been asking regarding the announcement of the extended cut. One of the main questions in the FAQ was what is included in the Extended Cut. Bioware stated that it will expand on the endings of Mass Effect 3 with additional scenes and epilogue sequences. It was also stated that these changes and additions will not change any endings, but it will expand on the original endings and reveals greater details regarding all of the players choices from the three games.
Hopefully fans on all platforms will enjoy this free DLC that Bioware has developed for all their fans. Some fans are sure to instill rage upon the company and the games endings, but that's to be expected with anything regarding the ending of the game.