Don't expect a new Alumascape to be the same thing as a traditional Alumascape, until the actual product comes out and you can see what it is.
The Alumascape brand disappeared when Monaco-owned H-R stopped making aluminum-skin trailers and motorhomes. Then Monaco shut down H-R, producing Holiday Rambler brands in the R-Vision factory, using R-Vision rather than H-R constuction techniques. Alumascape resurfaced for at least one model year, but it was a laminated wall, plastic skin TT, nothing like an Alumascape. This was just before the 2008 collapse of Monaco, alumascape just a name decal on the side of someting else.
Monaco successors have re-opened the H-R, plant, so I've read somewhere, but whether these are tradtional Holiday Ramblers, mass production laminated RVs, or something else, is yet to be seen.
Original Alumascape construction used welded aluminum wall framing, full framing like a house, riveted aluminum skins, batt insulation, utulity runs in the similar to stick and brick construction, interior panelling fastened to frames. Later, adhesives replaced rivets, and eventually composites were used for exterior skins. The construction remained expensive (a few high end manufacturers still do it) but I would wait to see if a new Alumascape is this, or something cheaper using the name.
One thing for sure, Holiday Rambler, the company that built the reputation, is long gone. The people who made it what it was are gone. Somebody else owns the brand names.