Not any real momentum here yet, but a group has addressed a letter to congress seeking to eliminate Form 990 Schedule B. The letter states...
"As acknowledged by the IRS itself, Schedule B information is inapplicable to the legally permissible handling of 501(c) organization tax filings. Eliminating Schedule B will not only make tax compliance easier, but also help limit the ability of the IRS and others, including state officials with access to the information, to chill free speech and civic participation among the public"
See the letter here.