I'm personally thinking of getting a split keyboard soon, but I'm so split on what I want. Currently using a Preonic and find the ortholinear/compact layout fairly pleasant, so I might just want to get something like the Let's Split. Still, I can't decide if I'd prefer a board with thumb clusters and/or staggered rows (like the Ergodox).
I'd honestly be fine going back to a more traditional layout on a split keyboard (not ortholinear, punctuation keys in normal places, all that stuff), but I've been really unimpressed by what I've seen of those in terms of features. I really want QMK, and I'd also like boards that are flat/don't have a strong tilt since those tend to be a bad ergonomically (in fact, I'd ideally like optional negative tilting). I also want something that's relatively low profile, which is also tricky to find in my experience.