I'm sure this is not a bug that will go live... but all the Summoner icons seem to be available.
This is basically an announcement for anyone who still wanted to have that ONE icon that wasn't in the store before.
I'm sure Amy Sery, or one of her fellow Helpers (sorry I'm not acquinted with all ya'll names yet) will say the following
(Quoted from Amy from another post)
"Friendly reminder that PBE is a testing environment, which means content may be available/unavailable depending on what needs testing/what we may be testing with the store. :)"
Have fun everyone :)