That's how things were left yesterday, with no change today, for board nº2.
If you make a new revision of the card you could maybe add a prototyping area?
What kind of bus are you using? Is it a common 96pin bus like the ECB?
Are there any clock signals on the bus, that may be used to synchronise the address-decoding and may be used to replace the crystal?
Yes, I was thinking in adding a prototyping area to every available zone after optimizing this a little. I'm Using SKS's MC80 bus, present in the SKS KISS, Alphatronic P1, P2 (except P2L), P3, P4, P30, P40, HELL DS2038, DS2069.
There is, according to docs, a clock signal of 3MHz but every peripheral card that requires clock uses its own crystal. I was thinking in keeping the current crystal but drop the D flip flop and allow the PIT to run twice the frequency for more precision.