They are at least as likely to build a descendent of this reactor as a BWR or PWR, because High Temperature Gas-cooled Reactors are inherently safer than either of the water cooled types. The Pressurized Water Reactors became the dominant type because they were directly descended from Naval sub and ship reactors, not because they were actually better than other types. They were used on ships because they were more compact than other types, which is not a particular necessity on land.