Here people prefer to stretch themselves for an Oriel and hardtop has not been as hot in the past. If they reduce the price gap that affects sales for HT.
Also after adding the standard features there still are the 5-6 differences they will be keeping. The new addition of features in both probably will be constant.
Like they added Remote Key and Airbags in previous gen but added Oriel with Cruise and Climate Con instead. Example: This time if they add Climate Con in hardtop there will be another new feature for Oriel like PBS.