Question about Logitech G G604 Lightspeed

I am looking for a replacement for my aging Logitech G700s. Application CAD, so I need additional programmable keys like the G700s had. G604 would be a possibility, but the product is already a few years old and is still supported for how long...? Can we expect something new? Mandatory: Wireless, battery ideally Li-Ion, Ergonomics similar to G700s / MX Master etc. (for me, there is only something from Logitech on the table...)