I was wondering if this was in the works.  A new Raspberry Pi 4 board with 8 GB of RAM.  I bought one of the 4 GB models, which is my new desktop machine.  In the old days I would have upgraded the RAM in my PC, with the Raspberry Pi I’ll just get a whole new board.  For $75, why not?  No real hurry.  4 GB seems to be more than enough right now.

The most powerful Raspberry Pi now has 8GB of RAM