Trial period this summer, ending this month. They will gauge it.
From the Chicago Bike Federation:
The initiative ends Oct. 30. When it's over, Metra will consider expanding the service year-round. Let Metra Chairman Philip A. Pagano know you want year-round bicycle access to Metra trains. If you used the service this summer, mail or fax Pagano a thank-you letter [Metra, 547 W. Jackson St., Floor 13 W, Chicago, IL 60661-5717; (312) 322-6965 fax] that tells him what worked for you and what didn't, and state clearly that Metra should reinstate Bikes on Trains in January 2006 as a year-round campaign. Please fax a copy of your correspondence to the Chicagoland Bicycle Federation at (312) 427-4907.