My guess would be they are trying to reduce the 485 processing time to the FY04 target of 20-months. Once 485 backlog reduces to 20 months, they will hopefully start approving 140's (and concurrently processing 485's).
That way, they would have acheived the goal of reducing 485 backlog to 20-months in FY 2004, AND they would prevent it from growing anymore by concurrently approving 140 and 485s after reaching the FY04 target.
So if this theory holds water, then we should see:
a->Till October 04, only backlogged 485s being approved
b->Till October 04, no new 140 approvals (except for EB2 pilot program)
c->In October 04, the 485 backlog reduces to 20 months
d->Post October 04, new 140+485 concurrent approvals
e->Post October 04, backlogged 485 approvals, but at a slower rate than we saw in (a) because they need to only make sure backlog doesn't grow
f->Sometime in mid FY05, 485 backlog begins reducing to below 20 months to meet their ultimate 6-month goal.
So far, it appears that (a) and (b) have happened, and the updated processing time to 360-450 days seem to agree with this. So unless their backlog reduction plan slips schedule, in 360-450 days, it seems like the current concurrent filers with 140/485 pending should start getting approvals of both applications.
This is my wishful thinking guesstimate.