Asiana:

Seoul-Chicago effective July 21 WILL NOT INCREASE from 4x/week to 1x/day as had previously been scheduled nor will First Class service be implemented on this route.

SAS Scandinavian:

Oslo-Prague effective August 30 will begin 2x/week service.

Singapore Airlines:

Singapore-Male effective March 25-April 24 will operate 5x/week instead of 1x/DAY.

Thai:

Bangkok-Denpasar effective April 2-June 30 is being reduced from 1x/day to 5x/WEEK.

United:

Washington(IAD)–Manchester effective May 1 will begin 1x/day service.
Washington(IAD)-Manchester effective Sept 3 will decrease from 1x/day to 5x/WEEK.
Chicago-Brussels effective Nov 4 will increase from 6x/week to 1x/DAY.
Chicago-Munich effective Nov 4 will decrease from 1x/day to 6x/WEEK.
Houston-Paris(CDG) effective Oct 15 will decrease from 1x/day to 6x/WEEK.
Newark-Geneva effective Nov 12 will decrease from 2x/day to 6x/WEEK.
Newark-Oslo effective Jan 14,2013 will decrease from 1x/day to 6x/WEEK.
Newark-Stuttgart effective Nov 7 will decrease from 5x/week to 4x/week.
Newark-Barcelona effective Nov 4 will decrease from 6x/week to 4x/week.
Newark-Copenhagen effective Nov 4 will decrease 5x/week to 4x/week.
Newark-Hamburg effective Nov 12 will decrease from 5x/week to 4x/week.
Newark-Paris(CDG) effective Jan 13 will decrease from 2x/day to 1x/day.

Previous Star Alliance Updates: ONE TWO THREE

Source: Airlineroute.net