IMO, George is a little young to be attending Trooping the Colour this year, although maybe we'll get to see him on the balcony next year or the year after. Most royal children seem to make their first balcony appearance at two or three years old, with exception of Prince Edward.
It will be interesting to see who makes an appearance this year. I wonder if The Linleys and or Chattos will attend, since they both didn't attend last year, and The Linleys' last appearance on the balcony was in 2011.
I'll try and watch it although I have drama courses at a similar time to Trooping the Colour, but that would only make me miss the first half hour or so.