There is a limit ppl are now instead of ON heading towards imports like Prado, since the new shape of prado is out every1 with a 2010 prado will run to get there's Facelifted to 2018 shape soon.
Thailand imported revo dropped a while back but will pick up in 2018 as it's duty will be cheaper expect to see 2016 r revo and fortuner now being imported more from Thailand.
If Toyota won't deliver people will find other alternatives and look at imports then.
2018 will be a interesting year as I see new contenders entering market to challenge Hilux in form of
Volkswagen amorak and Nissan Navara.
Fortuner was mostly & still is favorite among corporates and govt they aren't really bothered about a few individuals orders.... when there is demand and money in bank no real competition Toyota is chilled.
Deliveries will be late with still ques.
