Don't underestimate Cook's greed...More likely: iPhone Xs gets a price drop. iPhone X Plus gets the same price as the current X.
By the many posts here that basically ignore the price increases... "Derp, who cares about the >$1000 price!, I'm only paying an extra $10 a month anyway..." shows that Apple customers haven't hit their price limit yet. The X stays at the current price level and the Xs+ starts at $1250