Less stuff and the moving parts of the shifters, etc.
Would be more stuff and moving parts. Now you’ve got little electric motors/servos involved, batteries, etc. I’d be pretty surprised if it saves any weight.
Less moving parts at the switch, or none. Switch could be all electronic/digital/wireless. No more cables. Also without the cables requiring an external input mechanical connection near the derailleur, there’s better opportunity to “seal” the inside electromechanical components from the outside world.
Would be more stuff and moving parts. Now you’ve got little electric motors/servos involved, batteries, etc. I’d be pretty surprised if it saves any weight.
Less moving parts at the switch, or none. Switch could be all electronic/digital/wireless. No more cables. Also without the cables requiring an external input mechanical connection near the derailleur, there’s better opportunity to “seal” the inside electromechanical components from the outside world.