  Internet of Things (IoT) connectivity has a prominent presence in the 5G
wireless communication systems. As these systems are being deployed, there is a
surge of research efforts and visions towards 6G wireless systems. In order to
position the evolution of IoT within the 6G systems, this paper first takes a
critical view on the way IoT connectivity is supported within 5G. Following
that, the wireless IoT evolution is discussed through multiple dimensions:
time, space, intelligence, and value. We also conjecture that the focus will
broaden from IoT devices and their connections towards the emergence of complex
IoT environments, seen as building blocks of the overall IoT ecosystem.
