[imtringued]

That still requires cooperation from the SoC vendors. If they aren't interested then Treble will go nowhere.

[lern_too_spel]

Treble is required by the Vendor Test Suite for Android 8 and higher. https://source.android.com/devices/architecture

[anchpop]

This is probably still in Google's best interest, since it greatly reduces the cost for OEMs to distribute updates (and updates are one area where Android severely lags behind iOS)