Would be kinda nice if someone made a small FPGA based board with an A1200 trapdoor compatible slot into which you could shove your existing accelerator kit.
that something that will never happen cause industry already moved from 5v ICs long time ago, now it's getting difficult even to find 3.3v stuff. all the level converting would be a nightmare, not worth the trouble just to support legacy expansion stuff.
But a small FPGA based board that will blow the most expanded A1200 out of the water is definitely a possibility, I believe it will be with us, maybe not very soon, but somebody wll make it eventually (if not the Natami team).