I think next big thing for IoT is multi purpose connectivity modules (like a black box). Based on your use case it will select best option.. finally we can focus on business value
My thoughts from MWC in Barcelona. IoT platforms and connectivity is ready for next level of IoT solutions. Don’t wait for 5G because it will take 4-5 years before we can use it globally. NB-IoT, Cat-M1, LoRa etc in combination with 4G will make it. 3G will disappear