I'd love to see a diaper for us that has a wider crotch, better single tapes and is thicker, scaled up from a size 4 baby diaper. Something that fits and looks more realistic to baby diapers than of our current offerings. But aside from that, had great luck with Rearz Inspire+ InControl.
What's required to "look more realistic"? There seems to be a huge variety of prints available on the market right now, though single tapes are still somewhat rare. What else is there?