If they were to build a new true Amiga, it would have some sort of custom coded Amiga operating system, and the ability to run classic Amiga code alongside new programs on modern hardware. Wouldn't it?
[...]
Perhaps some sort of "Linux: Amiga Edition" or something.
Actually there are many vialable solutions to this topic: on one hand there are Emulators (UAE and such) while, on the other hand, there are many attempts (most of them contending the "Epic Fail" award)
-AmigaOS-XL / Amithlon (software emulation tailored to specific PC hardware running on top of a linux box)
-AROS (Software OS 3.1 API-Level compatibility attempt running on top of linux but aimed to run, hopefully someday, in native x86/x64 mode)
-MorphOS (lightweight Operating System stuffed with a JIT 68k compiler to be able tu run Amiga specific legacy applications... at least that's what they say!)
-AmigaOS 4.x (Operating System running on specific hardware only...judge for yourself...)
-Phoenix (custom Hardware home build reegineered Amiga with improvements)
-Minimig (hardware emulated A500 with real 68k embedded CPU and FPGA reengineered Amiga specific Custom-Chips)
-C-One (8bit hardware platform which could be "upgraded" to 16bit Minimig Amiga with a sort of "plug-in board")
-AmigaONE (PPC custom Hardware)
-PegasOS II (PPC custom Hardware)
-SAM440ep (SoC PPC custom Hardware)
-Natami (custom hardware aimed to bring the Amiga an up-to-date state-of-the-art hardware[

o_O] while being compatible with old kickstarts)
Actually most of those "products" appears as "walking dead" to my eyes.
IMHO what really made THE DIFFERENCE on top of the Amiga was the userbase AND the hardware itself... not the userbase nor the hardware separately taken aside should have had the ***Magic*** one bye one... everything relayed upon that specific (and particular) "hystorical moment" which made it possible.
Growing system complexity and the lack of proper motivation took most users "out of business" while some others got the ball running surfing the nostalgic feelings.
Nowadays it would be nice to have a REAL native AmigaOS running on top of mainstream hardware... but developers seems to have lost that train many moons ago... Really sad.
...as always.. do not take me too seriously! (I don't like starting flames... It's just my personal POV, maybe a little bit too utopic)
Peace!