most likely no.
EKWB did a bunch of market research into what people wanted from a performance AIO. their brief for the predator was to make a high performance product based on watercooling products that sell.
in watercooling, single fan rads are by far and away the worst sellers with people opting mainly for dual fan radiators as the entry option. I guess many see it as 'not much more money and double the performance', and most people regard a dual fan rad solution as the ideal setup for cooling any CPU.
if there is a single fan version later down the line, then i would be very surprised