From what I saw there and read about in the original link, it looks like the Heroica series will build upon the principles of earlier LEGO-based boardgames to produce a dungeon-crawling game, complete with combat and resource management. I can say from personal experience that these LEGO boardgames are quite fun; my 8 year-old son in particular enjoys them. Indeed, when I told him about and showed him Heroica, he expressed great interest in it. I can't say that I'm surprised: he adores LEGO and the only aspect of my Dwimmermount campaign that's grabbed his attention is the use of miniatures and dungeon tiles. Heroica combines those two things together to produce a complete game -- plus it introduces the basic principles of classical dungeon crawling. What's not to love?
I expect I'll be picking these games up for the family once they're available.