It's happening ! There was announcement today April 13, 2020.
https://community.secondlife.com/blogs/entry/4114-now-available-last-names-in-second-life/
I also received an email because one of my three entries was a winner. Bellisserian . It was admittedly a kiss-up suggestion because Second Life is heavily promoting their new premium continent Belliseria. But, hey, a win is a win !
The email message did not say to keep it confidential so here is the list of new names to be offered.
A complete list of available last names as of the launch of Name Changes is:
Conundrum
Dismantled
Huntsman
Littlepaws
Nova
Ravenhurst
Wumpkins
Yeetly
Hexem
Lemongrass
Salty
Alpha
Melodious
Hijinks
Mainsail
Mysterious
Ichibara
Kiyori
Voxel
Covfefe
Damballar
Vanilla
Banana
Pancake
Timmerman
Enchantment
Whimsy
Atheria
Rowley
Doge
Dallas
Jazzhands
Leeder
Nimble
Crisp
Plumday
Heartsong
Rumrunner
Peppermint
Puddles
Alpaca
Float
Bellisserian
Piggins
Cloud
Takeda
Mercury