There's a bunch of color options that aren't on their main site. Not sure why they haven't been added yet, but I know the Wrangler is introducing several new colors that have never been available from FCA before. There should also be a Nacho yellow that was featured at the Detroit Auto Show.
FCA had said that Mojito would be coming out on March 15...which it hasn't. They also promised to finally enable the Off Road Pages on the UConnect 8.4. I wouldn't hold my breath on either of these statements actually occurring if at all.
I think it might be a logistics thing, just Jeep trying to fullfil the typical Wrangler orders that happen before getting into any lower volume selling configuration. Aside from that I can't see why they would not offer it right away.