Is difficult to predict if this series war are the end of legacy, because, darkhorse has created an antihero, Cade Skywalker, troubled by his growth in the force, his adventures, his findings about the dark side
He is very different from Luke Skywalker, his ancestor... he did what Luke never did... experiment with lethal bars (the current drug in the sw universe), moreover he needs more tension in his relationships than Luke, for example there is big strain betwwen he and the imperial knights (other kind of force sensitives... not Jedis, in some way in struggle with them)
Something I would like to know... when Cade, Syn, Blue and some guys speak in huttesse... it seems that they are replaying only Jabba´s lines from the OT classic films? (E chu ta is an insult (this word appeared in Bespin the protocol droid), pattesse is a nickname....), but, is Darkhorse willing to expand Huttesse out of the classical records?
I recognise, Cade is more often tempted by the dark side, because his healing power is growing near the strenght in the force of Darth Plagueis.
A clearer end should consider if Cade would return to the Jedi order, until he becomes a full Jedi, or if he definetely abbandons the order, the series should suggest adventures of the succesors of Kol Skywalker, Shado and company.