Release speculation...

Game	Pre-Purchase	Release	Days till release	Months till release
Diablo 3	Mar-15	May-15	60	2
WoW Cataclysm	Oct-28	Dec-12	40	1.3
Portal 2	Feb-14	Apr-18	64	2.1
TW: Shogun 2	Jan-16	Mar-15	59	2
Starcraft 2	Apr-21	Jul-27	97	3.2
Warhammer 40k	Feb-15	Mar-11	25	0.8
Guild Wars	Feb-14	Apr-27	73	2.4
Guild Wars 2	April-10	???	29 & counting	1+...

The table comes from
http://guildwars2.romank.dk/speculative-release-date-post-bwe/

Speculation does help kill time.
//Yamagawa

There's been some recent speculation about June 29th (26th for prepurchase) as apparently new cards when you prepurchase a physical copy (like at Gamestop) the cards for beta codes expire on the 26th.

On twitter they have already addressed gamestop stuff and said that it is just their place holder date.
I don't see the game only getting 2 or 3 BWE then being released....

Also June 29th is a Friday.... Most games are released on a tuesday... and if it is released on a tuesday, then we get sat, sun and monday, head start.