Since its mentioned in OP, but I wouldn't really call it new, I hope Theories sticks around. And, maybe that gets us Static VI. I like Quasi, 917 and the stuff WKND puts outs, but I'm not overly hyped on them or invested in them as brands. The only newer board brand I really hope sticks around is Isle. Their line-up is amazing, and I think Jacob Harris is one of the best guy doing videos right now and has a great vision for the brand alongside Nick Jensen and Paul Shier.
To be honest, I'm just hoping some of the brands I liked or respected growing up are still around in 5 years. I'd find it weird if skateboarding no longer had Girl, Chocolate, Zero, Toy Machine or Habitat (zombie Alien is already dead to me).