[vesak]

Nah, the headphone jack can move to the history books already. They oughta replace it with something standard, though, like USB-C. Bluetooth isn't an acceptable total replacement as long as batteries add bulk and need to be recharged. When that's fixed, Bluetooth everywhere will be fine also.

[xxs]

Bluetooth has lag, which makes it useless for playing instruments (say guitar). Analog jacks are a nice feature, moving the DAC through another interface doesn't solve much.