An electric uke makes the most sense if you're genuinely interested in effects, looping, or recording with plugins - not as a stepping stone to playing better. The thing is, your fingers and ear develop the same way on acoustic or electric, so there's no "readiness threshold" you need to hit first. That said, swapping between them does feel different physically (smaller body, different neck feel usually), so jumping back and forth might actually mess with your muscle memory a bit.
What I'd actually consider is whether you want to explore those sonic possibilities right now or keep your focus narrow for another year or so. If the idea of running your uke through a reverb pedal or recording clean takes to a DAW gets you excited, grab a budget electric and keep your acoustic - they're cheap enough that owning both isn't some huge commitment. Just don't fool yourself into thinking it'll make you a better player. The fundamentals stay the same: it's still about your timing, pressure, and listening.