Dries1,
You can find a comparison of the Nikon 8x32 EDG and the Nikon 8x32 HG L (LX L in North America) in Allbinos rankings of 8x32 binoculars. The 8x32 EDG is ranked first by Allbinos while the (discontinued) 8x32 HG L is ranked 5th.
https://www.allbinos.com/allbinos_ranking-binoculars_ranking-8x32.html
They are both large, heavy binoculars for size 8x32 and they both have flat fields. That size and weight carries through the 10x32 versions of the binoculars. I own both the 10x32 EDG and the 10x32 LX L and I can confirm that. The differences between the 10x32 EDG and 10x32 HG L/LX L include brighter Dielectric coated prisms on the EDG as opposed to silver coated prisms on the HG L. There is no change in the FOV but the eye relief is longer on the EDG, the oculars are wider, the focusing speed is a bit slower on the EDG and the objectives on the EDG have better ED glass coatings. Their eye cups are removable. Nikon also supplies easy on and off "horned eyecups" for difficult sun conditions.
Allbinos does not rank or review 10x32 binoculars.
My Nikon 10x32 EDG is nearly as large overall as my Monarch 8x42 HG and it weighs 22.9 ounces, almost as much as my Nikon 8x42 Monarch HG at 23.5 ounces weighs. The 8x32 EDG weighs 655 grams or 23.1 ounces.
I also have been wondering if Nikon will come out with 32mm versions in the Monarch HG series and personally I have my doubts that they will.
It would result in the 32mm Monarch HGs being in competition, both optically and in price, with Nikon's High End EDG 32mm binoculars and with their very popular Mid Range wide field Monarch 7 30mm binoculars. Price wise they would be situated in between them. Also note that while Nikon's 32mm EDGs have flat fields they do not have truly wide FOVs while the Monarch 7 30mm binoculars have just the opposite; wide FOVs without a flat field which are not as costly to manufacture.
I think that this caution Nikon is using in keeping its better binoculars from competing with each other is one of the reasons why the Monarch HG 42mm binoculars were built on lightweight Magnesium frames and why they have a wide fields with a field flattener but do not have an expensive to make flat field like the EDGs have. It makes them a reasonably priced attractive lightweight binocular alternative,
with larger exit pupils, to the smaller but more expensive 32mm binoculars.
Bob
PS: I would like to make one more observation here.
As far as I know since the introduction of Phase Coatings on Roof Prism binoculars Nikon never made a 32mm Roof Prism binocular that was not in their "Top of the Line." In other words an "Alpha." Their Monarch line of binoculars had 36mm offerings that sold well and most recently Nikon offered Monarch 30mm binoculars but Nikon has never offered 32mm roof prisms in these lower price ranges. Their first
Roof Prism 32mm Alphas were in the HG (for High Grade) series and they were followed by the EDG series.
What I find curious is that they have named their new binocular series "Monarch HG." Whether or not this is an indication that they are coming out with a new high priced "Alpha" binocular is anybody's guess.