Lois and Clark are "THE"
comic book relationship. To suggest that they'll never date or that there'll never be an attraction or flirtations and such there is just stupid. It may not be planned now because they want to this decades old fan-service of having Supes and WW together but sooner or later Lois and Clark will be an "item" in some fashion again.
I mean, it's Lois Lane and Clark Kent! There's no other couple in the history of fiction more destined to always be together no matter what.