There’s certainly no fixed date that I’m aware of.
At the very least, I doubt Purism would bother releasing a new model until Intel puts out chips that don’t have the Meltdown/Spectre vulnerabilities, hardware-level. That should be later this year.
Can’t answer the rest since I don’t yet have a Purism device. I too am waiting for a new revision.
That being said - I would think the keyboard layout thing would depend on the OS and not the hardware. You can look into PureOS and see if you can get any info on that.
If it doesn’t, maybe look to find a Linux distro that does.
Though that’s a very basic feature in most operating systems. I’d doubt PureOS doesn’t allow you to…
If this is not available, do you recommend any available alternatives, for example a specific transparent sheet that correspond to the design of Librem that goes on top of the keyboard.
Ohhhhh… you want to actually change the hardware keys too huh? Yeah I wouldn’t know about all that.
I would like also to know if you sell a separate external CD/DVD reader that I can order with the laptop ?
They don’t. I’m pretty sure the Librems are the only thing they do. They don’t sell peripherals or anything else. They’re basically just a little startup company that focuses on making privacy-focused computers.
If I were you I’d just get a USB keyboard to plug-in to the Purism laptop and use that when you want to switch keyboard layout. I mean what do you currently do for this issue? Lol.