Idea: Build a version of Designer that runs on ARM devices without requiring an emulator.
Windows 10 on ARM is becoming an increasingly popular option for new devices. Also, with Apple's move toward ARM, virtualized instances of Windows on Mac will either need to be the ARM version or will have much better performance over an emulated version of x64 Windows 10.
Emulated software is considerably slower than native binaries, so to maintain Alteryx's fast performance, an ARM version of Designer would be the best way forward for those looking to move to ARM platforms.