Or at least that is what it seems, as recently revealed new armors for Halo 4, one of the most anticipated games of 2012. It turns out that one of those armor, called Venator, bears a huge resemblance to the DS2's Advanced Suit! If you don't believe me, look at this: http://www.halopedian.com/images/6/63/Venator_armor.jpg

My opinion: http://fc09.deviantart.net/fs70/i/2012/148/1/8/advanced_rig___mjolnir_mark_vi___venator_armor____by_lopez_the_heavy-d51a2o2.jpg