Thanks for your interest i really Appreciate it!
i will give you more details with use cases
About item 2: a way to change an antenna to increase the zwave range Antenna could be great for Big Homes, it will increase the 1st Hop length, so devices on the first hop range respond faster… it will be really great to have more devices on the first hop range. Also since the first hop is longer, this will dramatically increase the whole network range. i remember using a longer antenna to increase the range of a Vera edge on a 3 story home full of zwave Gen3 switches, and for the record it worked as a charm.
About Item 3, Dry contact on the Hub Will be great to provide more tools for the integrator to achieve some really cool Automations and integrations, for example you can connect a Gate opener or siren, you can also do some integration with any access control systems or any alarm Panel, thanks to a dry contact.
You can also add to the Hub Input contacts, so you can use any sensor in the market that is still not developed under any home automation protocol. like Photo beams sensors, water level sensors ETC…
About item 4: A siren on the hub will make the hub more attractive, because this way the HUB it will work for something else than just be the controller of the home automation system.
About item 5: a way to copy 433MHZ universal devices will be great, this will allow easy integrations with gate openers, curtains, Shutters, access control systems as i said this is something other companies provide on their hubs already, Like Broadlink for example
Controlling 433MHZ device has become the main attraction on this controller. just to let you know i need to install a broadlink every time i install a new vera system ( I have plugin for integration), because the customer already have 433MHZ device in their home and would like to have this type of device integrated with it alexa.
About item 7, the best way to make a good zwave or zigbee installation is placing the hub in the center of the home, but sometimes you dont have a table or furniture to place the hub in that place.
This is the reason why we are forced to install the hub on the wall or on the celling (it is something we have done a plenty of time).
In a nutshell, at this moment there is a lot of company offering home automation solutions without a Hub, (tuya, Sonoff, Etc) so making the HUB more attractive it will be the KEY of your Success. So this is something that EZLO need to consider
This is something you already achieved with the Ezlo Plug, when you buy an ezlo Plug, you do not just buy that “thing needed to control the other things in your home” you buy a useful device that can provide home automation at the very moment you buy it…