I have heard today that a new train service will operate for next ski season from Zurich to Zernez. The train will be direct and will cut the current journey by about 20mins as there will be no platform changes.
There are 3 trains daily running in both directions, details of the timetable will be available from November on www.sbb.ch.
Also if you want to purchase reduced price tickets do so on www.swisspasses.com. If you have a swisspass, a child under 16 can travel free with a fare paying adult.
This will surely make getting to Livigno a lot easier!!
Looking forward to Feb already!!!