V August 2007, John Carmack at the annual QuakeCon tournament in The Dalles mentioned that he was thinking on the development of Doom 4.
V ສິງຫາ 2007, John Carmack ໃນການແຂ່ງຂັນປະຈໍາປີ QuakeCon ໃນ Dalle ກ່າວວ່າເຂົາເຈົ້າໄດ້ຄິດກ່ຽວກັບການພັດທະນາຂອງ Doom 4.