What we need are new custom chips that are socket mounted and upgradable. Because the "original" things you can do using these chips were what made Amiga better. And these chips are what makes the Amiga demos better than the rest, and also why we are still using amigas.
And if you consider how Jay Miner and his friends made their dreams come true by believing and dreaming about what they wanted, you don't have to be the multi milion company to invent these. And make these things compatible with a modern ati graphics card for 3d and you have the dream Amiga. Just believe and dream about it; all of you.