@Pasdesushi I’m responding to you here following your survey response:
Sonos integration
For the Sonos integration, have you tested the Node-RED Sonos integration? This could be a good solution while waiting for someone to develop a service!
possibility of using the weather module in scenarios (unless I missed something?)
What would you like to do?
In the meantime, you can also (small hack) use the « HTTP Request » action to make a request to the OpenWeather API (I know that @lmilcent does this), and then use the retrieved data in the « Continue only if » action, which would meet your needs in the meantime?
zigbee2mqtt: problems with some devices that return text (e.g., Philips & Ikea buttons)
Gladys does not allow testing these values in scenarios (I saw that there was a topic on the forum)
Currently, I am forced to go through node red to create a device that returns a number following the text
Is this something that is under active development? Have you talked about your problems on these topics?
I am not the developer of the Zigbee2mqtt integration, so I cannot help you with that. Do not hesitate to restart the topics in question if nothing has moved for a while 
a storage method for scenarios
What do you mean?
creation of virtual devices
Wouldn’t the MQTT integration be sufficient for this? That’s what everyone is doing right now.
After that, it’s true that a real « Virtual Device » integration could be clearer for everyone, but if the MQTT integration does it, it might be a good solution while waiting for someone to work on a virtual device integration.
- another problem but related to scenes
Improve the condition system (with an else for example)
Because my number of scenarios is increasing very quickly otherwise
There is a feature request that goes in this direction, you can vote here: