343 Games has announced Halo: The Master Chief Collection which will contain updated versions of all four core entries in the sci-fi shooter series.
http://www.totalxbox.com/77803/halo-the-master-chief-collection-revealed/?cid=OTC-RSS&attr=OXM-General-RSS
http://www.totalxbox.com/77803/halo-the-master-chief-collection-revealed/?cid=OTC-RSS&attr=OXM-General-RSS