I don't think you'll have long as it looks as if Panasonic, Sony and Samsung are doing more with OLED. Sony are said to be addressing brightness which is a current OLED weakness - or so we're told!
There are no brightness problems with the current LG oleds, no matter what you read. I've reduced the brightness, as it was far too intense. I have as pure white as can be expected from a screen and my colour temp is a good neutral, unlike most of the people on av forums (and reviewers) who insist on a far too warm temp, making whites yellow and skin tones all looking like David Dickinson. Of course, they'll try to convince you that all movies should be shown with a magical standard "warm" appearance, but they don't have a clue. Sheep.
Panasonic and especially Sony have had their day. They're no longer the leaders in the industry. LG have come from nowhere and produce stunning tvs with superb quality control. My tv has no banding, no dead/stuck pixels, no colour casts in the whites and somehow they've made a down-pointing tiny built-in speaker design actually sound very good. Well done LG. Oppo is another company to have risen to the top.