Jens has allready announced (on a1k.org) that he has solid plans for doing a 020-based card for the A500.
Proposed features:
- 020 at 14MHz
- 8MB of RAM (maybe 16Bit maybe 32Bit wide)
- A600-compatible IDE-controller
- A1200-trapdoor connector to use A1200 style accels !!
He also briefly mentioned on doing "something better" for the A2000, but no details yet.