Space Marine units being retired

I'm sure people will have seen this going around today.

The great squatening of Firstborn units has begun. Multiple Space Marines models are being officially retired.

https://www.warhammer-community.com/2023/07/24/space-marine-range-update-bikes-land-speeders-and-more-are-soon-zooming-off-into-the-sunset/

Confirmed going to Legends are the Thunderfire Cannon and Land Speeders.
Some units with analogous units will become "counts as" - Bikes as Outriders, Assault as Vanguard, Venerable Dreadnoughts as plain Dreadnoughts, etc.

Scouts models also going, but no word on their status in the article. Possible most credence to "Primaris Scouts vs. Striking Scorpions" Kill-Team set rumour?

Also no word on what the retirement of Bikes and Land Speeders does to the Ravenwing. Reduced options yes, but if Speeders go, what of the Talonmaster?

The Thunderfire surprises me, as I'd have expected it to be rolled into the Firestrike Turret.