Could this mean the end to the BW 5?
No. I really doubt it. GM does many things right, but they've never been good about creating exclusivity.
If it is in demand, GM till try to make as many as they can and for as long as they can.
I personally think the CT5 V Blackwing is going to be in production for a loooong time. The Blackwing engineers have made a golden goose and the GM bean counters are going to work her for all she's worth until she's begging for a humane death.
The way things are going GM is probably going to come up with a special edition for every year just to milk the most out of this.
Here is probably their product strategy along with the tagline for each year.
2023: 120 anniversary edition
2024: 20 years of V Edition. "Yep we've been shoving z06 engines into your grandpa's car for 20 years now, get some nice new badges and some stickers to celebrate."
2025: Final Edition. "It's the end of an era, get yours now, because it's all over after this."
2026: Encore Edition. "The cheering was so loud when we got off the stage, that we decided to do one final go at it. It's seriously over after this."
2027: Resurrection Edition. "We killed the beast but it wouldn't stay dead. Due to popular demand we resurrected the Blackwing. Nevermind production only stopped for a few weeks while we retooled the factory."
2028: 125th Anniversary Edition. "What kinda bs anniversary was 120 anyway?? This is the anniversary edition you really want."
2029: 25 years of V Edition. "Yeah, 20 years ain't a real anniversary either. Get the stickers that really matter"
2030: Chinese Blackwing Edition: "The legendary Cavalier nameplate returns as an EV subcompact SUV with an 800hp trimotor Ultium drivetrain in SS trim. To make room at the Lansing plant, all Blackwing production has moved to China, the only place in the world that still makes and buys sedans.
New features include:
Cadillac Smart Comrade Driver: broadcasts all your movements to a special Blackwing concierge service based in Chengdu.
All body panels now feature paint across the entire surface.
Orders go to instant 2000 status if you work for the US government or live near a military base."
2031: Blackwing leMans Victory Edition: "Finally after 8 years of trying, Cadillac wins Lemans. Of course all of the manufacturers have pulled out and Cadilliac was the only factory team, but no matter, a win is a win. Stickers for days yo."
2032: Blackwing 10th anniversary. "How have we been making this same car for 10 years? Let's celebrate our procrastination with a sticker package."
2033: Blackwing CT4 surround view edition. "We heard you, the CT4 BW now comes with a 360 camera."