Like Tom says there isn't an expected time and seems to be no rule... chances are it will go at some point, when is just a gamble.
Rav4 and other variants we also cover. 4x4 market is one of the biggest with models like Izuzu D-max, Nissan Nivara, Nissan Patrol, Subaru Forester and Toyota Hilux being popular.
Xtreme is well known in Europe for this very reason. They are market leaders in 4x4.
Now growing in the performance market. They are really good kits.