The future of biometric modalities in consumer electronics (Help Net Security)
“ABI Research posits that as ASPs for iris modules drop, and the once timid face recognition is continuously honed with more sophisticated machine learning algorithms, they will both slowly start to eat away at fingerprint implementations.”
There’s a lot of good information in the linked article. Fingerprint technology is still the most ubiquitous biometric technology worldwide and it will be for some time. Biometrics will ultimately be an all-of-the-above industry where the application determines the biometric modality/modalities brought to bear.