Assuming the Stinger get the upgrade to the 3.5TT (in addition to the 2.5T) at least for LHD markets, along w/ improvement to the interior/tech - Kia, at the very least, can postpone the decision by extending the current life-cycle.
So instead of a quick 5-6 year life-cycle for most Kia models, extending it to 7-9 years.
The Stinger had global sales of 27,641 in 2018 and 23,308 in 2019.
Kia likely wants to see Stinger sales in the 30-35k range, which wouldn't happen unless T4 sales improve drastically, and sales improve in the US, Korea and Europe.
The Korean market isn't keen on liftbacks and the even w/ the new 2.5T and 3.5TT engines (and the updated 2.2L diesel; the Stinger should really get the 3.0 I6 diesel), the upcoming tougher emission standard for Europe is going to make things tougher.
For Europe, the Stinger would need hybrid and electric variants - which wouldn't be available until the next gen model (underpinned by HMG's new RWD platform).
So that leaves the US market in having the carry the load of increasing sales.
Outside of Europe, the Stinger outsells the Arteon by a good margin, but VW makes up for w/ European sales (helped by an efficient/low tax 1.5T engine - which isn't exactly a performance engine) and pulls ahead w/ China sales (the Arteon is also manufactured in China, so no tariff hit).
US pricing is too high. We pay peanuts in Canada compared to you guys. With exchange, I paid equivalent to $38,500 USD for a full loaded GT2 AWD
While agree that the pricing was a bit on the high side (esp. w/ certain features deleted), what has been selling in the States (like pretty much everywhere else w/o prohibitive emissions taxes) has been the higher-priced TTV6 Stingers.
Yeah... and our Aussie friends get the bimodal exhaust. Hopefully 2021 will give everyone in all markets all the goodies.
Which they have to pay extra.