if this happens, the real reason is that plasmas offer too good of a value, and they are worried OLED wouldn't be able to compete.
OLED over LED is a no brainer, but paying so much more for OLED over plasma is going to be a hard sell.
i'm sure OLED will provide the best picture, but plasma is still the best value, and i personally would continue to buy plasmas until OLED prices dropped, even LED's are way overpriced imo today
Displays: Samsung PN64F8500/JVC X35
AVR: Pioneer VSX-1018AH, 5.1 audio
Sources: HTPC(Mediabrowser), PS3, XBOX360, Wii, Sony DVP-CX995V
Control: Harmony One