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OLED monitor momentum expected to continue — analysts expect 1.34 million units shipped by year end
(www.tomshardware.com)
This is a most excellent place for technology news and articles.
Most OLEDs today ship with logo detection and will dampen the brightness on static elements automatically.
While it isn't a silver bullet, it does help reduce burn in since it is strongly linked to heat, and therefore to the pixel brightness. New blue PHOLEDs are expected to also cut burn in risk. Remember that LCDs also used to have burn in issues, as did CRTs.
And other means of preventing it like pixel shift and refresh. Time will tell how long the current generation lasts but it's only going to get more and more easily mitigated.