My sense is Raffensperger is still pretty popular even among most Republicans here in the N Atl suburbs (which also tend to have the highest turnout in the R primaries), so I'm not convinced Hice would take him out in a primary. I would also think the State Establishment R circles would also strongly back Raffensperger against Hice, which carries some weight given most voters probably don't know who Hice is.
That said, if Hice does win, barring the Ds nominating someone truly crazy (someone along the lines of Cynthia McKinney), I do think the race would be the Dems' to lose.
Off topic, but I wonder what happened to her.