I’m happy with the trade off, being able to change builds at will and being a Jack of All Trades is something I really like, I think this drastically improves the experience during the story and also in the post game, I am ok if the trade off is that you make fewer new characters.
But I don’t think this will actually be the consequence, The devs have currently made a nice post-game system to provide a lot of replayability, but it has some flaws: the purple fog becomes annoying and repetitive, and the loot isn’t satisfying, in my opinion This is a problem mainly caused by the enchantment system and from the reckless use of RNG everywhere (if you’re interested in the discussion on the enchantment system, see here: The RNG Problem, Enchantment System & Gem System “TOGETHER” (Update)), so in the end, it’s more fun to create a character from scratch and redo the story.
The new system ensures that the post-game will have nicer objectives than “farming for embers”, but I think creating a new character will always be fun; playing the story with a different build always has a different charm than playing the post-game and unlocking all the traits.
To unlock the new traits you have to use a new weapon, it’s not something out of your control if you want to focus on one class or two to roleplay you are free to do so.
And will have more traits on that class than a Jack of All Trades, so it has its benefits even if you play only one class.
I recommend you join this conversation too: PSA - An overview of the upcoming class system