according to mmo-champion, blizzard devs snuck in TWO more possible pets for 4.2! this time we're getting... balloons?
we'll have to wait for future announcements or hints on this one!
imo, i'd love to receive a fun balloon companion for blizzard's anniversary this year. my only worry: like the dragon kite and tuskarr kite, we won't be able to summon the balloons while mounted. that would definitely "deflate" my interest... har har. :P