I think honestly the most important component of fixing the ladder would be making the seasons longer, sadly that's the option they seem to be the least willing to do.
Really I wouldn't worry too much about how players are going to label each other when designing an effective ranked environment. Elitism can and will develop with any skill progression system, I don't know that it's worth trying to avoid.
And yeah, you can experiment in ranked now, but the point is people are much less likely to do so considering they feel a pressure to get their rank up in a very short season. It takes an absurd amount of games to get to legend, even for a skillful player.
I think the underlying problem is that they tied in the qualification for the Hearthstone World Championship to the ladder. Since they already mapped out the qualification process for 2017, they can't change how the ladder works anymore (at least till 2017 ends). This in itself forces these high level players to play 50% shaman in the last day of the season. There's just no incentive to play anything else because not only is shaman OP, games also don't take that long too.
I wish they had just made a different qualification mode for the HWC. They could have just added tournament mode and have the players qualify by winning daily/weekly tournaments. That or just make the seasons longer, and make it so that the LAST DAY of the season isn't all that matters for farming points.
I also wish they would do rotations instead of straight nerfs. There's a reason Wild exists. Un-nerf combo, warsong commander, and just let players go
WILD. Wish more players would also start playing Wild.
Right now, the game has just de-volved into either a) I play the pirate package or b) I play Reno decks. It really doesn't matter that you have a "diverse" set of classes being represented right now. Because the way the game is set up now (the current meta), you just play 1 of 2 styles. And that makes everything so similar, so homogeneous. And that makes the game un-fun. There's really not much difference to playing against a warrior, shaman, rogue because it's just pirates hitting your face every single game. There's not much difference playing against Reno decks that have a busted Kazakus and Turn 6 Get rich and Auto win card (never really liked the design of Reno, but this is just a personal preference). It's why this meta game feels like the worst it's ever been
for me, and I've been playing this game since 2014.