Truthfully, going and removing the Ark from it’s hiding place (having been seen inside by multiple wittnesses in 1982 along with other gold objects but now burried behind 6 ft of concrete) inside of Har Habayis is more important than ascending. It would cause several things:
1. Establish the precise location of the kodosh kodoshim
2. Reinstill national pride and mass tshuvah in Israel
3. Establish a mishkan on HHB eventually a temple building