The new lights were supposed to be out already. I think they might have gone back to the drawing board when Ecotech came out with the Radion. It will be interesting to see if they made changes. They showed the "Vega" at MACNA last year, but some are saying the new version may incorporate some RGB? I really don't know what they will do. The VEGA is based on the "NANO" configuration. It will have 4 pucks with 5 lights (I think it's 5....might be 6) in each puck. They also say they will be coming out with an upgrade to make the current Sol units into a Vega unit. I am not really sure why you would do that. The Sol units are pretty sweet, but I read the newer puck style is about 20% more powerful. Same colors really, but I guess more PAR?
Anyway, I believe we should see the new Vega soon. Maybe this month, or next month? AI will only say "soon."
As for the Sol blue vrs white. I think the white units were pretty white when all lights were on 100%............however you can turn down the white to get a nice color. So they came out with the blue unit to adjust at the 100% level. The light seems similar to me, but I do like the sol blue. You can turn down the blue as well if you would like the whiter look. LOL! I know it gets crazy. They will both grow coral, so It's a preference thing. The blue helps your corals really POP with color though.