Though the closure of Xbox Entertainment Studios will drastically reduce Microsoft's plans for original Xbox programming, corporate vice president of Microsoft Game Studios Phil Spencer claims that a few key projects will live on. "Xbox will continue to support and deliver interactive sports content like 'NFL on Xbox,' and we will continue to enhance our entertainment offering on console by innovating the TV experience through the monthly console updates," Spencer wrote in a statement to Recode.
According to Variety, it also appears likely that the Ridley Scott-produced Halo prequel Halo: Nightfall will survive the death of Xbox Entertainment Studios, both because it's quite a ways into development already and because Microsoft is currently in negotiations with Showtime to broadcast the series on premium cable alongside its Xbox debut.
Update: Microsoft has contacted us to confirm that Halo: Nightfall will continue production. You'll find the official statement below.