Yeah yellow diodes would be great, I just don't yet know if I wanna spend $530 on a 589 Spartan. I'll bet it's a true beauty to all that have one though.
I'd love to see lower dioides in 600s like 625 that would give use a neat color.
maybe we we get 540ish doides near the 543 hene.
470-490 will probably happen as remeber those 980 pointers that emit a cyan line. I have one too it's real.
I'm thinking higher powered 638s with better divergence will happen at some point like as good as a 445.
Imgine if 488s can come out and we get them to 500nm by pushing.
It wouldn't suprise me if we get 405s that eirther break 1 watt or can be pushed up to like 415nm making them much brighter.
Also don't forget 375nm might be a few years away i'd love that.