Most things in Archaeology were made with the plan to use them in future content. The dig sites themselves, or content within them such as the wingsuit.

We did have crazy ideas for how we could expand areas in future updates over the years. If you take Stormguard as an example you may notice the rings high in the sky as well as the take off platform to the west of the workshop. Quite an ideal location for a potential agility course/training method!

SonoShindou

From my understanding, Rite of Passage was shelved for so long because we're actually supposed to go to a world built for bird people and Jagex wasn't sure how they wanted the mechanics of it all to work to fit thematically. Now we can fly, so it reopens the door to the possibility of getting this quest :D

Stormguard/flying, from the outset, was intended to answer some of these long held issues. My hope was to get us closer and I think we have. :)