Those packages will need a rebuild anyway, it would probably be better to update/SRU them and make them build-depend on wine1.2-dev.
The reason is that in the future wine-dev will be the 1.3/1.4 branch which may break build compatibility with 1.2 (in the same way that 1.2 did with 1.0, which is why we now have wine1.0 and wine1.0-dev in lucid).
Those packages will need a rebuild anyway, it would probably be better to update/SRU them and make them build-depend on wine1.2-dev.
The reason is that in the future wine-dev will be the 1.3/1.4 branch which may break build compatibility with 1.2 (in the same way that 1.2 did with 1.0, which is why we now have wine1.0 and wine1.0-dev in lucid).