I want "retro inspired" but not just a straight retro design.
For example, I liked what Boston and Vancouver did the last time around. Their jerseys look retro, but if you look through their uniform histories, you see that they never previously wore anything exactly like what they wear now.
The Bruins' uniforms are similar to what they wore during the Bobby Orr era, but not exactly...
The Canucks are also similar but different...
I don't mind black as an accent colour. The problem with the current uniforms is there's too much black. Ideally, I'd like it if they could find a dark red that would look good against the regular red to use as an accent colour instead of black.
Although the yellow stripes on the Heritage jerseys were ugly, when the logo was put on a solid red practice jersey, I thought it looked great.
If they do go full retro next season, one change I hope they make is to put the red line between the white and yellow on the logo.