Don't you think that a "Nethergat 2", with improved interface and graphics, would be fun ? I only played the demo, but having 2 storylines, and 2 different sort of people seems to be a very good idea.
I think i won't buy Nethergate (25 $ is 25 $, and for quite an old game ; I bought Av3, and maybe I will buy Geneforge).
But when there will be a nethergate 2 (in the year 2027), I'll buy it !!!
PS : why not creating a different sort of magery for the Romans ? (in the year 2027 too)