IoT Cloud with Uno + Ethernet Shield?

Can I use the IoT Cloud with an Uno (or Leonardo) + Ethernet shield?

Connecting to the Arduino IOT Cloud requires a device that can support an encrypted communication and has a secure element chip where we store a digital certificate.
At the moment only the MKR 1000 / 1010 are supported GSM will be added soon followed by others (like VIDOR and Uno Wifi REV2)

At a later stage we plan to open up to less secure devices (which implement a less strict encryption and less secure authentication) like Uno with Eth and similar

how are we going with the plan to allow uno +eth to connect to iot cloud??