Ugraded wandering trader diamond tier

Currently wandering trader says teir 1 suggesting he should level like villagers how about after a few encounters a wandering trader apears that can actually level and after you trade sufficiently he leaves in due course but eventually that/A level 2 trader shows up simulating a repeat vender with upgraded trades and adjusted prices eventually after establishing a reputation becoming diamond teir like other villagers exept [Returning] randomly with circulating expanded  inventory consisting of sell and buy trades. Unteired still arive like always to at random.