It seems that 3 of the birds' names have been confirmed.
- The yellow bird is Poppy
- The blue bird with the hat is Willow
- The other blue bird is Luca
More can be found in this video.
Angry Birds Go might be releasing a Winter update, with all new teleports and vehicles. (They could be for multiplayer too, since it was previously announced.)
While that, Angry Birds Toons episodes 27-52 will come out in DVD and Blu-ray on April 15 2014.
For more info, see http://www.angrybirdsnest.com/news-roundup-angry-birds-go-series-2-telepods-and-more/.