What could Apple‘s next growth engine be to reignite revenue growth?

Guys, what do you think could be Apples next „Big thing“ to get back on a new revenue-wave?
Apple Vision Pro is unlikely to be that kind of growth engine, because it‘s quiet specialist, super expensive and just about 250k units in the beginning.

So where do you guys see Apples next big growth engine?

E-mobility? AI? Health? Gaming? Sports?