Sony & Samsung 48MP sensors arrived...
https://www.gizmochina.com/2018/12/11/honor-view-20-camera-samples-reveal-photography-prowess-of-48-megapixel-sony-imx586-sensor/
https://www.xda-developers.com/redmi-note-7-pro-48mp-sony-imx586/
For about 150 bucks... there's no more excuses to stop you become an artist for large ; -)
The first studio comparison images are in and I must say I am impressed:
https://www.gsmarena.com/piccmp.php3?idType=5&idPhone1=9468&idPhone2=8966&idPhone3=9065
The only downside that I can think of now is that if pixel binning is done by the CPU itself it would limit the ability of phones to offer 4K at 60p.