Skywest/ASA must do 80% of the DCI flying in ATL, that is by number of seats, not aircraft. What do you think will happen to ASA if UAL reduces Skywest's flying?
MCO ops are being significantly reduced this fall, however some intra-Florida routes will remain. ASA originally took 4 200s to do this flying. The ATRs may, and I emphasize may go away as of Dec 2, 2008. DAL outright owns 4 airframes, leases the other 8.
Also, keep in mind that ASA stopped hiring before many other carriers, including Skywest, Comair, Eagle, Mesa, and PSA.
I think ASA's furlough possibility will greatly depend on who absorbs Expressjet's LAX and SLC ops. Many of those routes will reduce frequencies, others will just go away.