That's what i am hoping, you seem very confident, arrogant even
Probably because he watched the stream where Blizzard said exactly that. Trial isn't meant to REPLACE arenas.
You still will be able to queue, earn conquest, increase your caps and buy gear just like you were before (including cosmetic rewards like elite sets and stuff like gladiator meta gems / enchants) at any time, with anyone.
The only thing Trial of the Gladiator is for, is TITLES and MOUNTS (aka the more permanent, prestigious rewards). That much was pretty clear to me, but I guess they could communicate that better.
So the players who are 2.2k and would never get glad anyway (due to wintraders and the cutoff being extremely high), have nothing to complain about, because they will still have everything they did before.
The wintraders are essentially removed from getting Glad, because you can't wintrade if you're forced to queue at peak hours. The titles will finally go for those who deserve it, meaning the ones who put time and more importantly dedication to the competitive aspect of the game.
I see that as a good thing, but I'm just a random scrub so whatever.