Looking to get into Spearhead with Soulblight

I started 40k in January of last year and am thinking of giving AoS a try. I'd like to try spearhead so I don't need to paint up a full blown army and I heard that spearhead is really well balanced compared to 40K Combat Patrol.

The Soulblight Gravelord box looked super cool. But I saw they were getting a new one soon so I feel like I should wait it out if I want to play them? I think the current box still looks really cool but am I better off waiting for the new one to come out? And anyone know when it comes out?