No, not really.
The 680x0 is just really slow compared to even the low-end FPGAs of today.
Its an Apples and Oranges comparison.
The former started out about 30 years ago.
not long ago, before igor came around and made his first attempts as what appeared to become 68000 decelerator best case, every regular discussion about possibility of an 68k fpga accelerator led to agreement, that it isnt workable, at least beyond 68000 at the speed equivalent of 68030/25, as tg68k was. tg is probably most advanced, at least when it comes to open source 68k cores, and has not seen any more development for years, afair some bitfield instructions have been added, but thats it.
so maybe it is just overall inability and lack of creativity of amiga fans. but in current comparison vampire cards are fast and cheap. i know that you always make bold statements, as when you promissed to deliver an os4 ppc platform within a year, but you are talking here about a real project and people doing actual development. some respect is due, imho.