I’ll be very interested to see how they handle this. It seems like a catch 22 for me, to keep players interested, the character has to progress and get stronger, but making a character satisfying from a getting stronger perspective, means that lesser developed characters are fodder. I’ll be surprised if they solve that problem.
The other problem I see with no PvE, with a competitive only game, it’s not just how good it is, it’s how many other people are playing it. These type of games tend to sink or swim very fast without another structure to occupy players time while the game attracts a following. Once the player numbers drop to a point where getting matches becomes slow or uneven, the game is toast. The likelihood that will happen is fairly high I think.