HDMI 2.1 is already out in a dual laser DLP, standard throw projector manufactured by LG. It also has Dynamic Tone Mapping and nearly full DCI P3 color.Are we getting HDMI 2.1 support anytime soon?
See: LG HU810PW 4K UHD Smart Dual Laser CineBeam Projector (HU810PW) | LG USA
By the way, DLP projection has been making significant strides in the technology's solid state platform when it comes to price and options, including single laser, dual lasers, and RGB tri-color lasers. Look at the UST options.