Im curious, when will the option for alpha testing become available because I wanna be one of the first to sign up
We're at least a year from that... this is a 4+ year project. Just as a reference, this is a timeline for EK development:
April 2014 > I began prototyping, design choices, early development.
August 2014 > The game concept is more or less defined, development begins.
August 2015 > base engine completed, I begin creating content.
December 2015 > first "early access" release of the game (roughly, 25% of actual content was present)
August 2017 > version 1.0 released, main quest completable.
December 2017 > Mage & Thuram is added.
February 2018 > PC release
June 2018 > Companion quests, v 1.2 released.
It is my intention to release a PC Early Access version in Q1 2020.