Melott,
The 060@50MHz is not a fast cpu any more by today's standards. :-) the current "dream classic" ought to have something 040 compatible but 50 times faster. Literally at least 50. And 040, because not everything works well with the 060. :-)
I once had a dream of someone building a CPU card that had a Pentium or better CPU on it.. This would then bootstrap off a small rom and start emulating the 040 at high speed.
Unfortunately something like this would go to waste on the classic Amiga - the hardware isn't quite up to it any more. The buses are too slow, so the performance will die..
It'd have to be a whole new computer on the CPU card, one that only communicates with the onboard peripherals through the FAST slot. That's what they were going to make with the first AmigaOne, but perhaps it wasn't feasible..
Personally, I think the current way is the best, totally new hardware with "enough" legacy emulation in software. The only way to go forward is to stop looking back at some point.
