They are classic and will most likely stay that way.
I have 5 pairs of Crocs sandals and wouldn't dream of, especially, traveling without them. Wear them as bedroom slippers, shoes to change into at home when I walk in from outside, in a hotel room walking around, in the shower plus walking around Disney World. Have gotten caught in numerous massive rains at DW and boy, was I glad I had Crocs on.
Terrific invention.