Can we have some more Runes please?

There's still a lot of playstyles that are either non-existent or falling short due to a lack of filler runes. Things like Holy DPS with a rune to make Holy Nova an actual AoE ability that doesn't cost 1/7th your Mana bar per cast and some better interactions with Smite.

Hunter Pet-focused runes that aren't hybrids and not Phase 1 powerful, runes that either alter special abilities to have much shorter cooldowns or allow least-used pets to obtain focus abilities to make them useful would change a lot by itself, it's all cats/wind serpents and the occasional corehound now.

Two-handed Warrior rune that isn't just a 30% attack speed increase (and minor rage increase) when Shaman has 50% and 15% Attack Power, some more range-focused Rogue runes to make a viable ranged-weapon build (you're currently half way there and need a ranged builder ability) and many more additions.