I assume the original poster's intention was to use LNAV/VNAV for the approach?
It will come, and there is no reason not to do it when company/regulatory rules allow. BA are already flying RNAV approaches into LGW on the Classic 737 on, I believe, a trial basis.
I guess with the growing inability of new co-pilots to navigate WITHOUT the map screen, building an NDB approach would make sense in a monitoring sense - as long as it is flown 'NDB needles' where company rules insist. I cannot see it being permissable, however, as a primary approach aid UNLESS the above permission is in place AND the non-procedural approach is in the company database.