Everyone who has purchased a Founder's pack gets invited to the second alpha weekend, starting from October 16th!
You can predownload the client here
The guild has joined the Crimson Legion, so be sure to pick the right faction when you get your quest around lvl 5.
If you've picked the wrong one, there is an NPC at Jadestone Village where you can change your faction.
So be on the lookout for an email from The Blade & Soul Team. In there you will find your access code, your download link and the dates/times of the Alpha weekend.