FUNKePersonally I hope we see valve take a step to get new players queueing once ranked is fully working. It seems very peculiar they would make such an important update to it, only to stay relatively silent about it on and after its release. I am staying optimistic this was in anticipation of more bugs, and once said bugs are fixed they will announce it broadly.
Agreed with this, Valve really needs to do something unique to promote matchmaking once the servers are fixed. If the stats from teamwork.tf are accurate, matchmaking averages about 100 players. Even if queue times were fast and everyone had 100+ fps, I still find it hard to imagine that it'd become very popular since a lot of players would still stick to pubs.
There needs to be some incentive put into matchmaking to entice players to play it, whether it be rewards for the best players in their divisions at the end of comp seasons (a special hat, skin, or cosmetic for example), an in-game Valve sponsored matchmaking tournament, or anything else that would persuade the average pubber to try competitive. Twitch streams and blog posts just don't do the trick for TF2. If they don't differentiate it in some way, TF2 will just remain in its current state until it eventually dwindles away.