STAR ALLIANCE:

LOT Polish:

Warsaw-Beijing effective May 29 is reinstating 3x/week service
Warsaw-Hanoi effective March 25 is canceled.

Ethiopian:

Addis Ababa–Bangkok–Hong Kong effective August 19 increase from 4x/week to 5x/week.
Addis Ababa–Lilongwe effective March 25 increases from 6x/week to daily.
Addis Ababa–Lubumbashi effective March 25 increases from 5x/week to 6x/week.
Addis Ababa–Maputo effective June 15 increase from 6x/week to 1x/DAY.
Addis Ababa–Muscat effective June 15 increase from 3x/week to 6x/week.

SKYTEAM:

Aeromexico:

Mexico City-San Jose (Costa rica) effective March 15 will increase from 1x/day to 2x/day.

AirOne:

Milan-Mykonos effective July 14 to September 8 will provide 4x/week service.
Milan-Kiev effective September 17 will begin 4x/week service.
Milan-Belgrade effective September 17 will begin 3x/week service.
Milan-Amsterdam effective September 17 will being 1x/day service.

Previous Star Alliance Route Updates: ONE TWO THREE
Previous Skyteam Route Updates: ONE TWO THREE
Previous oneworld Route Updates: ONE TWO THREE

source: Airlineroute.net