There is a new Hero Quest version in the works, as stated by this successful crowdfunding:
HeroQuest 25 Aniversario Of course, that was at the end of 2013 and the game is not out yet, and many of their backers never trust it ever will.
On the other hand, there are many boardgame dungeon crawlers inspired by it. The most successful ones is probaby:
Descent: Journeys In The Dark (Second Edition) considered by some as the natural evolution of HeroQuest (it's an old game, and not up to todays boardgame standards).
There's also Descent's brother:
Star Wars: Imperial Assault which is basically Descent rules with a star wars paint over.
Mind you, this games are expensive, full of expansions and extra miniatures not included in the boxes. So yes, this games are really a money sink.
Which is why there are several other dungeon crawlers, to name a few...
Gloomhaven
Conan
Masmorra
Sword & Sorcery
And other incoming ones like Massive Darkness (from coolminiornot) or Lords Of Hellas.
I was myself looking for a dungeon crawler for my collection (and I still am), and I've been close to get Descent, but the mess of all the different expansions and how to combine them with the core box, plus all the extra miniatures with their cards and how they are taking advantage of their customers put me off. So I'm going to wait for the new ones and reevaluate. Keeping in mind that boardgames are very easily sold out and reprints are slow (if at all).