The timeline is always WAAAAAAAAY longer/slower than we perceive it to be.
This forum was in this stage of "We know expansion to coming soon, we expect it will be Seattle & Vegas by what we're hearing" in Spring of 2013.
It was almost 3 years before Vegas was announced and 4.5 years before they started playing.
That was 4.5 years before Seattle was announced, and 8.5 years before they started playing (Yes, they were slowed to start by COVID).
In other words, 2030 wouldn't be the date we have 36 teams in the league, but the date the NHL standings have 34 teams, and they can start exploring going to 36.
(And someone bump this in six years to laugh at me if they go quicker!)