In terms of how 'it seems' to be headed (slightly lighter in tone / darker & 'horror' elements lessened) that pretty much discounts a JLD adaption so my money would be on Dr Fate. You have a Indiana Jones 'type' back story of 'old adventure' with Nelson's past and the possibility of 'generational lineage' with the passing of the 'crown' as such, which gives for interesting character play and you cover the sorcery angle and he's reasonably well known and it's clear WB want to see some 'breakout' characters too so he covers all angles, for me.