There are dozens of Amiga related things happening these days...
Just off the top of my head:
The A314 project that allows you to hook a Raspberry Pi into the A500's internal memory port to provide both the expanded RAM to the Amiga, but also acts as an accelerated co-processor board to offload high performance code to, and it even allows the Pi access to the shared Chip memory as well as a few other tricks...
There's the Vampire accelerator boards to speed up the A1200, 500/1000/2000 systems that give it a 68080 (yes 080) processor, a ton more ram than these machines normally can take, IDE interfaces and even options for ethernet add-ons.
There's the zz9000 RTG graphics board for the 2000/3000/4000 that give retargetable graphics, and ARM processor to offload some processing, Ethernet, and even some USB capabilities.
There's the new RGB2HDMI project which lets you make use of a Raspberry Pi zero as a video passthrough to output the RGB video out to the PI's HDMI port so it can be easily used on modern LCD monitors (just installed one of these yesterday and it's great!)
There's a number of projects for replacing the motherboard with new boards (again, requiring donor parts from an original board)...
There's are at least 3 other new accelerator projects I can think of...
A new version of the classic 68k OS just came out a year or so ago (3.1.4) and 3.2 is expected sometime this year...
Of course, there's still a ton of legal hassles going on - Cloanto bought up all the licenses but Hyperion came out with the 3.1.4 OS claiming that they had the license for OS 3.x, so of course there's a lawsuit going on, which has been yet another useless distraction. Hopefully they'll work it out soon.
So, yeah it's FAR from a dead platform.... No, not a huge commercially successful one anymore, but it still has an active community and following, and is still being developed and expanded.