User blog comment:TombRaiser/The Elder Scrolls Anthology - Arrives Sept. 10. 2013/@comment-13269841-20130802203947/@comment-5003396-20130808175154

They lost their source codes from those games, so they would have to start from scratch (I think). There is also someone busy making a free port for Daggerfall, together with some other games, on http://xlengine.com.