Following years of incredible price gains, Block (SQ -0.11%) shares have been in the doldrums. After peaking in 2021, the shares are now 66% off of their highs. That includes a 27% rise in 2023, just a tad more than the S&P 500. At its previous highs, Block stock was exchanging hands at an astronomical valuation. It's now trading at just over 2 times trailing-12-month sales. But that's only a bargain if there's an exciting future ahead for Block. Let's see where to expect it to be next year at this time. Wh ...