Almost as old as your G90s by now, last year saw the launch of the 8K145 inch plasma display, at IFA. These were first used at the Beijing Olympics.
And let's not forget the 6 months delivery time.
Pity Panasonic hasn't got an (U)ST version of its new hybrid projector, only 3500 lumens so it's apeal as a budget plasma/lcd replacement is limited to the 85". 3K projector with a retroprojection screen, and many applications can do with 10% of the outlay.
LG didn't show projectors at ISE this year, so can't say how the Hecto performs.