According to the pdf specs, new Hmcs and Hpx250 use the same viewing tools.
A 1,226,000-dot RGB LCOS ViewFinder (0.45 inches) and a sharp 921,000-dot LCD side monitor (3.45 inches).
AG-Hpx250 Brochure
Still not very much stuff online, just some test footage from prototypes/pre-release units.
Last one is awfully comb-patterned because of the interlace mode the first 7 minutes were shot in.
What looks extraordinary to me, for now, is the extended zoom range.
A drawback could be the ND wheel, so tiny and not so comfortable, as some IBC visitor has reported.
We cannot buzz a lot about sharpness and actual footage quality, the first video shows a lot of blown highlights on overexposed shots but proper exposure would have lead to a better scenario, there's not that kind of movement to evaluate Rolling Shutter issues, we cannot match the two P.A.P. filter types (on the Hpx250)...
I hope that production units footage will follow ASAP!