Offline MicroSD Firmware Update for X1 / P1 / A1 Series

I guess it’s about time to get some improvements to the 2.4GHz debacle.
My wifi connection to the printer works about 2 times per. year after about 15 router and printer restarts.
Also I don’t have to check for updates with a mobile phone hotspot.

Edit: Also will there be a website or a dedicated place from where to download new and old updates?