Worst scenario for me: If they fold Tidal into iTunes it would be terrible. I got rid of iTunes when I purchased my first music server a decade ago. All the fussy DRM controls on ripped files were/are awful. And if MQA deceased at birth it would be back to where we were pre-Tidal. I could imagine eschewing streaming in favor of good old CD purchases.

Best scenario: Apple maintains Tidal as a separate service and helps promote grow of MQA.

MD600(2x2TB); iPad Pro
LR. 818v3, 8000SE
HT. 861v8+ID41,HD621; BW 2x802D,HTM1D,4x804S;SVS sub; Mac 5 MC501s; RGP 600Pro, JVC X950; Radiance Pro; Oppo 203
FR. G65, DSP3200-3300 DSW, HD621; Mac MC152; Oppo 103, PDP TCP65VT60, Radiance 2124; RGP1200C
4. G65, DSP3200-3300,HD621; OPPO 83, Radiance XE PDP
5. 818v3; Prime HP Amp; HD800