Or just wait for things to settle. As fast as the field is moving, staying ahead of the game is probably high investment with little return, as the things you spend a ton of time honing today may be obsolete tomorrow, or simply built into existing products with much lower learning cost.

Note, if staying on the bleeding edge is what excites you, by all means do. I'm just saying for people who don't feel that urge, there's probably no harm just waiting for stuff to standardize and slow down. Either approach is fine so long as you're pragmatic about it.