Play or wait? Concerned about difficulty

I think that after the latest balancing patch (that addressed the DDA Spike), it could very well be worth a try. The learning curve may be a bit steep if you haven’t played through to at least mid-game.

However, it would seem that I am in the minority with this opinion – see
Would you recommend buying the game now post patches?
Complete game on legend. Feedback
Early Leviathan Feedback

It’s still not completely fixed however. Just be warned of that. The evolution side is fixed, but you get crazy amounts of difficult enemies later on down the line, with next to no chance of survival unless you reload the autosave and hope for better enemies.